B1+ — Lesson 6

Education, Academic Life & Past Perfect

School & University · Past Perfect Form & Use · Sequence of Events · Mixed Tenses
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Vocabulary: Education & Academic Life

B1+ Focus: These words and phrases elevate your vocabulary from basic "school" terms to discussing university, studying habits, and academic performance.

Academic Terms

Assignment/əˈsaɪn.mənt/Курсова работа / Задача
Curriculum/kəˈrɪk.jə.ləm/Учебна програма
Scholarship/ˈskɒl.ə.ʃɪp/Стипендия
Tuition fees/tjuːˈɪʃ.ən fiːz/Учебни такси
Degree/dɪˈɡriː/Академична степен / Диплома

Verbs of Studying

Revise (for an exam)/rɪˈvaɪz/Преговарям (за изпит)
Cram/kræm/Зубря (в последния момент)
Enrol (on a course)/ɪnˈrəʊl/Записвам се (в курс/университет)
Graduate/ˈɡrædʒ.u.eɪt/Завършвам образование

Phrasal Verbs (Education) B2 Level Up

Fall behind/fɔːl bɪˈhaɪnd/Изоставам (с материала)
Catch up (on)/kætʃ ʌp/Наваксвам
Hand in/hænd ɪn/Предавам (задача/домашнo)
Drop out (of)/drɒp aʊt/Прекъсвам/Напускам (училище)

Idioms for Students

Hit the books/hɪt ðə bʊks/Залягам над учебниците
Learn by heart/lɜːn baɪ hɑːt/Научавам наизуст
Pass with flying colours/pɑːs wɪð ˈflaɪ.ɪŋ ˈkʌl.əz/Вземам изпит с отличие
A teacher's pet/ə ˈtiː.tʃəz pet/Любимецът на учителя

Grammar Lab: The Past Perfect & Mixed Tenses

This lesson covers the Past Perfect from every angle: structure (Simple & Continuous), usage for B1 and B1+, signal words, the fixed expressions built around it, and how it contrasts with Past Simple and Present Perfect.

1. Structure: Past Perfect Simple & Continuous

The Past Perfect Simple is formed using the auxiliary verb had and the Past Participle (V3 / -ed). The Past Perfect Continuous adds been plus the -ing form: had been + V-ing.

Affirmative (+)

  • Subject + had ('d) + V3 / -ed
  • I had worked hard.
  • She'd finished the exam.

Negative (-)

  • Subject + had not (hadn't) + V3 / -ed
  • We had not worked.
  • He hadn't finished.

Questions (?) & Short Answers

  • Had + Subject + V3 / -ed?
  • Had they worked?
  • Yes, they had.
  • No, she hadn't.
⚠️ Common mistake: The Past Perfect never changes for person — there is no extra -s for he/she/it: "He had finished" NOT "He hads finished". And in short answers, don't repeat the main verb: "Yes, they had," never "Yes, they had worked."
Past Perfect ContinuousStructureExample
Affirmativehad been + V-ingShe had been studying for hours.
Negativehadn't been + V-ingThey hadn't been listening carefully.
QuestionHad + subject + been + V-ing?Had you been waiting long?
⚠️ Common mistake: The auxiliary order is always had + been + V-ing — never "had being" or "was been". And there is only ever ONE "had", even in a long sentence: "She had been working" NOT "She had had been working."
📝 Easy: Regular Verbs. Complete the sentences using the Past Perfect Simple (regular verbs only). Use contractions if you want.
1. (Fill the gap) I felt confident because I ___ (revise) all night.
2. (Negative) She ___ (not / complete) her assignment on time.
3. (Question) ___ (you / lock) the door before you left?
4. (Choose) They failed because they ___ to the teacher's instructions.
5. (Short Answer) Had he asked for help? No, he ___ .
6. (Fill the gap) The match ___ (start) before we arrived.
🎯 Hard: Irregular Verbs. Complete the sentences using the Past Perfect Simple. Watch out for irregular V3 forms!
1. (Fill the gap) I was hungry because someone ___ (eat) all the cake.
2. (Fill the gap) My phone didn't work because I ___ (break) the screen.
3. (Negative) We got lost because we ___ (not / take) a map.
4. (Rewrite) He went home. Then I arrived. → By the time I arrived, he ___ home.
5. (Choose) By the time they found him, the thief ___ away.
6. (Put the verb) She didn't know the answer because she ___ (forget) her book.
📝 Easy: Continuous Structure. Form the Past Perfect Continuous (had been + V-ing).
1. (Fill gap) They ___ (wait) for an hour before the bus finally arrived.
2. (Negative) She looked terrible because she ___ (not / sleep) well lately.
3. (Question) How long ___ (you / study) before you took the break?
4. (Choose) The ground was wet because it ___ raining.
5. (Fill gap) I ___ (work) in the garden all day, so my clothes were dirty.

2. Usage: When Do We Use the Past Perfect? (B1 → B1+)

Every use below shares the same core idea — the Past Perfect marks the earlier of two past points. Cards A-C are the core B1 uses; D-E stretch the idea further for B1+.

A. The "Past of the Past"

  • Think of it as a "distance" from another past event, not a single point in time.
  • We use it to make it clear that one action happened before another action in the past.
  • "When I arrived (Past Simple), the train had left (Past Perfect)."

B. Duration before a Past Moment

  • We use it with for and since to show how long something had been true up to a point in the past.
  • Important: We use the Past Perfect Simple (NOT Continuous) with State Verbs (be, have, know, like).
  • "By the time he graduated, he had known his best friend for ten years."

C. The "Optional" Past Perfect

  • If the sequence of events is crystal clear because of words like before or after, the Past Perfect is sometimes optional — the Past Simple can do the job.
  • "After he finished (or had finished) his homework, he went out."
  • Rule: We must use Past Perfect when the sequence isn't obvious, or to emphasise that the first action was totally completed.
Past Simple (simple sequence)

✅ "I arrived, unpacked, and went to bed." (one action after another — no "past of the past")
❌ "I had arrived, had unpacked, and had gone to bed." → WRONG, there is no earlier reference point

Past Perfect (past of the past)

✅ "When I arrived, she had already left." (her leaving happened before my arriving)
❌ "When I arrived, she left." → loses the sense that the leaving happened first

🎯 Key idea: Ask yourself — did one action finish before another point in the past? If yes, that earlier action needs the Past Perfect. If the actions simply happened one after another in order, Past Simple is enough for both.

D. Simple vs Continuous: Result vs Duration

  • Continuous focuses on duration/effort leading up to a past moment, often explaining a visible result: "He had been writing for hours, so his hand hurt."
  • Simple focuses on the completed result or quantity: "He had written three essays."
  • 🚨 Reminder: never use Continuous with State Verbs (know, have, be, like) — always Simple.

E. A Look Ahead: The Hypothetical Past B2 Level Up

  • The Past Perfect is also the building block for imagining a different past.
  • "I wish I had studied harder." / "If she had revised, she would have passed."
  • These "unreal past" structures (wishes & the 3rd conditional) get a full lesson of their own soon — for now, just recognise that had + V3 after "wish" or "if" signals "this didn't really happen."
📝 Easy: Basic Uses. Identify the first action or choose the correct basic form.
1. (Identify) "I ate dinner after I had cooked." Which action happened FIRST?
2. (Choose) I couldn't buy the ticket because I ___ my wallet.
3. (Put the verb) When we got to the cinema, the film ___ (already / start).
4. (Fill the gap) I ___ (not / study) Spanish before I moved to Madrid.
5. (Choose) She was very tired because she ___ hard all day.
🎯 Hard: Nuance & State Verbs. Decide between Past Simple and Past Perfect. Remember the rules for state verbs and sequences.
1. (State Verb) By 2010, they ___ (know) each other for five years.
2. (Sequence) I ___ (open) the door, walked inside, and ___ (see) the postman.
3. (State Verb) He ___ (have) that car for ten years when it finally broke down.
4. (Context) The street was incredibly wet because it ___ (rain) heavily the night before.
5. (State Verb) She ___ (be) a teacher since 2015 when she finally quit.
🎯 Hard: Simple vs Continuous. Type the correct form (Past Perfect Simple OR Past Perfect Continuous). Think: Result vs Duration!
1. (Result) I was proud because I ___ (write) three essays by 5 PM.
2. (Duration) My hand hurt terribly because I ___ (write) all day.
3. (State verb) I trusted him completely because I ___ (know) him for years.
4. (Duration) She ___ (try) to fix the car for two hours before she finally called a mechanic.
5. (Result) He was energetic because he ___ (drink) four cups of coffee.
6. (Visible effort) They were out of breath because they ___ (run) to catch the train.

3. Signal Words for Past Perfect

These words help connect the two past actions and make the timeline clear. Choosing the right one — and putting it in the right place — is one of the most frequently tested points at this level.

📍 Position & Meaning

  • had + already/just/never + V3
  • By the time/Before + [Past Simple], + [Past Perfect]
  • Both patterns can also be reversed: the by the time/before clause can come first or second.

Already / Just / Never

  • Sit inside the verb group, between had and the V3.
  • ✅ "The class had already finished."
  • ✅ "He had just arrived when I called."
  • ✅ "I had never seen a penguin before."

By The Time / Before / After

  • By the time & before usually introduce the Past Simple action, while the other clause takes the Past Perfect.
  • ✅ "By the time I woke up, he had left."
  • After & because usually introduce the Past Perfect action directly.
  • ✅ "He passed because he had studied."
  • Once works like "after": "Once she had handed in her essay, she relaxed."
💡 Comma rule: When the by the time/before/after clause comes first, use a comma before the main clause: "By the time we arrived, the train had left." When it comes second, no comma is needed: "The train had left by the time we arrived."
📝 Exercise: Signal Words. Select or type the correct signal word based on the meaning and sentence structure.
1. (Choose) The lesson had ___ started when I arrived, so I missed the introduction.
2. (Choose) ___ we got to the station, the train had left.
3. (Choose) He had ___ finished his lunch a minute before the phone rang.
4. (Fill gap) I had never seen a penguin ___ I went to the London Zoo.
5. (Fill gap) ___ she had handed in her essay, she felt completely relaxed.
6. (Fill gap) I had ___ seen such a beautiful beach in my entire life!

4. Special Expressions with the Past Perfect B2 Level Up

A handful of fixed, emphatic expressions are built specifically around the Past Perfect. They are common in stories, articles and Cambridge-style exams, so at B1+ you should at least be able to recognise them — and start using them.

No sooner ... than

  • Means "immediately after" — one thing happened right after another.
  • No sooner had + subject + V3 ... than + subject + past simple.
  • "No sooner had I arrived than it started to rain."
  • Neutral version: "I had no sooner arrived than it started to rain."

Hardly / Scarcely ... when / before

  • The same idea as "no sooner" — a very short gap between two past actions.
  • Hardly/Scarcely had + subject + V3 ... when/before + subject + past simple.
  • "Hardly had the lesson started when the fire alarm went off."

It was the first/second/only time...

  • Used to count occurrences — say something had (not) happened before a certain point.
  • It was the first time (that) + subject + had + V3.
  • "It was the first time she had failed an exam."
  • "It was the third time he had been late that month."
⚠️ Inversion rule: When a sentence starts with No sooner, Hardly, or Scarcely, the auxiliary had jumps in front of the subject, like a question: "No sooner had I sat down..." NOT "No sooner I had sat down...". This inversion disappears if the subject starts the sentence instead: "I had no sooner sat down than..."
📝 Easy: Recognise & Complete. Choose or type the missing word.
1. (Choose) ___ had the film started when my phone rang.
2. (Fill gap) No sooner had he sat down ___ the phone rang.
3. (Fill gap) Hardly had she left the house ___ it started to snow.
4. (Choose) It was the first time (that) he ___ a car.
5. (Fill gap) It was the second time she ___ (fail) the driving test.
6. (Fill gap) ___ sooner had they arrived than it began to rain.
🎯 Hard: Rewrite with Inversion. Complete the second sentence so that the beginning given keeps the same meaning as the first.
1. "I had hardly sat down when the phone rang." → Hardly ___
2. "The train had no sooner left than it broke down." → No sooner ___
3. "She had never driven in the snow before." → It was the first time she ___ in the snow.
4. (Fill gap) ___ had we sat down to eat when the fire alarm rang.
5. (Choose) No sooner had the exam finished ___ the students left the room.

5. Contrast: Past Perfect vs Past Simple vs Present Perfect

These three tenses all describe finished actions, so students frequently confuse them. The key is to ask what point in time the action is measured against.

Past Simple → Finished Time

  • The time is specific and over.
  • Time markers: yesterday, last week, in 2015, ago, when
  • ✅ "I lost my keys yesterday."
  • ✅ "She finished her degree in 2019."

Present Perfect → Link to Now

  • The time is unfinished, or the result affects the present.
  • Time markers: ever, never, just, already, yet, since, for
  • ✅ "I've lost my keys." (They're still lost now!)
  • ✅ "I've never seen snow." (life up to now)

Past Perfect → Link to Another Past Moment

  • Linked not to now, but to a second point in the past ("past of the past").
  • Time markers: already, just, never, by the time, before, after
  • ✅ "I had lost my keys before I left the house."
  • ✅ "The train had left when I arrived."
Present Perfect (link to now)

❌ "I've lost my keys yesterday." → WRONG (finished time word)
✅ "I've lost my keys — I can't find them anywhere!" → CORRECT

Past Perfect (link to another past point)

❌ "I've lost my keys before I left the house." → WRONG (needs a second past point)
✅ "I had lost my keys before I left the house." → CORRECT

🎯 Ask yourself: Is the time simply finished and stated? → Past Simple. Is it linked to NOW (result/experience)? → Present Perfect. Is it linked to ANOTHER point in the past? → Past Perfect.
📝 Easy: Choose the Tense. Select Past Simple, Present Perfect, or Past Perfect.
1. I ___ my homework yesterday evening.
2. (Fill gap) I ___ sushi before — I'd love to try it one day.
3. By the time the professor arrived, the students ___ .
4. She ___ her degree in 2019 and moved to London straight away.
5. He was upset because he ___ his scholarship the week before.
🎯 Hard: Type the Correct Form. Read the context carefully and choose Past Simple, Present Perfect, or Past Perfect.
1. (Linked to now) I can't hand in my essay because I ___ (not / finish) it yet.
2. (Linked to another past point) I couldn't hand in my essay yesterday because I ___ (not / finish) it.
3. (Finished, stated time) Shakespeare ___ (write) Hamlet hundreds of years ago.
4. (Past of the past) The lecture ___ (already / start) by the time we found the room.
5. (Linked to now) I ___ (know) her since we were at university together.
6. (Finished, stated time) He ___ (drop out) of university back in 2020.

Reading: Academic Disasters & Successes

Read the texts carefully. Notice how the Past Perfect is used to establish what happened before the main past events.
😰

Text 1: The Nightmare Exam

Yesterday was the worst day of my academic life. I had a final exam for my History degree at 9:00 AM. I had set my alarm for 7:00 AM, but my phone battery had died during the night, so it didn't ring. I finally woke up at 8:45 AM. I threw on my clothes and ran to the university. By the time I arrived at the exam hall, the test had already started, and the doors were locked. I peered through the window and saw my classmates writing furiously. I felt terrible because I had hit the books all week and had even learned several dates by heart. When the professor finally let me in, fifteen minutes had passed. I sat down to write, only to realise that in my panic, I had forgotten to bring a pen! I eventually borrowed one, but I certainly didn't pass with flying colours.

Questions:

1. Why didn't the student's alarm ring?

2. What happened by the time he arrived at the hall?

3. How did he prepare for the exam beforehand?

4. What problem did he discover after sitting down?

🎓

Text 2: The School Reunion

Last weekend, I went to my high school reunion. I was most excited to see my old friend, Maya. In school, she had always been the teacher's pet. She had never fallen behind on her assignments and had always passed every exam with flying colours. When we finally spoke, I asked her about her degree. To my surprise, she told me that she had dropped out of university after just one year! She explained that she had realised the curriculum wasn't for her. Instead of studying, she had used her tuition fees to start her own tech company. No sooner had she registered the company than her first client signed a contract. Before she turned 25, her company had already made a million pounds. I was shocked. I had spent four years cramming for exams to get my degree, while the best student in our class had become a millionaire without one!

Questions:

1. What kind of student had Maya been in high school?

2. What did the author learn about Maya's university education?

3. What had Maya done with her tuition fees?

4. 🔍 Inference: How does the author feel about Maya's success compared to his own path?

Text 1 / 2

Cloze Text: Open Gaps

Read the story about an academic struggle. Type exactly ONE word into each numbered gap. Think about Past Perfect auxiliary verbs (had), signal words (already, before, after), continuous forms, special expressions (no sooner... than), and the lesson's vocabulary.

By the end of the first semester, Mark was in trouble. He (1) fallen completely behind on the university curriculum. The main problem was that he had (2) learned how to study independently before he enrolled on the course.

The day before his big essay was due, he realised he hadn't even started it! He (3) spent the whole month going to parties instead of hitting the (4). He decided to cram all night. By the time the sun came up, he had (5) finished typing the last paragraph.

He ran to the university to (6) in the assignment. However, when he arrived at the professor's office, the door was locked. He looked at the deadline notice on the wall. He was too late! The deadline (7) already passed. Because he (8) failed to submit the work on time, he lost his (9) and eventually had to drop (10) of the university entirely.

Six months later, Mark (11) been working at a small bookshop to save money. No sooner (12) he saved enough money (13) he decided to enrol at university again — this time, he had learned his lesson.

Key Word Transformation (KWT)

Complete the second sentence so that it has a similar meaning to the first, using the word given in capitals. Do not change the key word. Use between two and five words including the key word. Focus on Past Perfect and sequence of events.

Exercises & Drills

Fast-paced practice. Exercises 1-4 focus on the Past Perfect vs Past Simple. Exercises 5-10 will challenge you to mix and distinguish between Past Simple, Past Continuous, Present Perfect, and Past Perfect. Exercise 11 practises the special Past Perfect expressions (no sooner...than, hardly/scarcely...when).

Mixed Tenses Writing (Ultimate Challenge)

Instructions: Read the context carefully. You must type the correct tense for the verb in brackets. These exercises mix all the tenses we have covered. Use contractions if you like!
🎯 Exercise 1: Mixed Tenses (1-10)
1. The film ___ (already / start) by the time we arrived at the cinema.
2. Shh! The baby ___ (sleep) in the next room right now.
3. William Shakespeare ___ (write) Romeo and Juliet hundreds of years ago.
4. I am completely exhausted today. I ___ (study) for five hours!
5. Look at those huge dark clouds! It ___ (rain) very soon.
6. I ___ (read) a book quietly when the phone suddenly rang.
7. Water ___ (boil) at 100 degrees Celsius.
8. I ___ (never / visit) Japan, but I want to go there one day.
9. The ground was wet this morning because it ___ (rain) all night.
10. I think humans ___ (live) on Mars in the distant future.
🎯 Exercise 2: Mixed Tenses (11-20)
1. She ___ (just / finish) her assignment, so she is free now.
2. We ___ (go) to Italy for our summer holidays last year.
3. "I'm cold." "Don't worry, I ___ (close) the window for you."
4. He ___ (not / do) his homework, so the teacher was very angry yesterday.
5. The train to London ___ (leave) at 8:00 AM every single day.
6. My eyes hurt yesterday because I ___ (stare) at the computer screen for hours.
7. You look tired! How long ___ (you / wait) here?
8. They ___ (play) football at exactly 5 PM yesterday.
9. I bought some flour yesterday because I ___ (bake) a cake tonight.
10. I normally walk to school, but today I ___ (take) the bus.
🎯 Exercise 3: Mixed Tenses (21-30)
1. I didn't recognise her at the party because she ___ (dye) her hair blonde.
2. Watch out! You ___ (drop) those glasses!
3. ___ (you / ever / eat) sushi in your entire life?
4. I ___ (see) an amazing documentary on TV last night.
5. He usually ___ (drink) coffee, but today he is drinking tea.
6. While I was cooking dinner, my brother ___ (watch) TV.
7. She ___ (learn) English for three years and she speaks it very well now.
8. Promise me you ___ (not / tell) anyone my secret!
9. Stop talking! The professor ___ (explain) the grammar rules right now.
10. They ___ (walk) in the mountains for hours before they finally found the cabin.
🎯 Exercise 4: Mixed Tenses (31-40)
1. What exact time ___ (you / arrive) in London yesterday?
2. I ___ (lose) my keys! I can't open the door now.
3. Before she moved to Paris, she ___ (never / learn) a single word of French.
4. Don't worry, I ___ (help) you carry those heavy bags.
5. Your clothes are covered in paint! What ___ (you / do)?
6. Yesterday morning, the sun ___ (shine) and the birds were singing.
7. We ___ (travel) to Spain next summer. We booked the tickets yesterday!
8. The Earth ___ (go) around the Sun.
9. Why ___ (you / cry)? Is everything okay right now?
10. I ___ (wait) for 40 minutes when the bus finally arrived yesterday.
🎯 Exercise 5: Mixed Tenses (41-50)
1. We ___ (have) a party next weekend. Do you want to come?
2. Christopher Columbus ___ (discover) America in 1492.
3. Oh no! I ___ (break) my favourite mug. Look at the pieces on the floor!
4. By the time I woke up, my parents ___ (already / leave) for work.
5. I ___ (study) medicine at university. That's my long-term life dream.
6. The boys were extremely tired yesterday because they ___ (play) football all morning.
7. He ___ (work) on this project since January, and he is almost done.
8. I ___ (have) a shower when you called me last night.
9. I never ___ (eat) breakfast on weekdays.
10. I think our team ___ (win) the championship this year.
🎯 Exercise 6: Special Expressions & Final Contrast
1. ___ had the taxi arrived when it started to snow.
2. No sooner had she handed in her essay ___ she felt completely relieved.
3. It was the first time (that) he ___ (drive) on the motorway.
4. I ___ (already / finish) my degree by the time I turned 22.
5. She ___ (never / visit) Italy before last summer, but now she has been three times.
6. I can't submit my assignment because I ___ (not / finish) it yet.

Gerund vs Infinitive

Gerund (-ing) only: enjoy, avoid, finish, suggest, miss, practise, admit, consider, keep, mind, risk, imagine, delay
Infinitive (to + verb) only: want, decide, hope, plan, expect, manage, agree, refuse, offer, promise, tend, fail, afford
Both possible (same meaning): like, love, hate, prefer, start, begin, continue
Meaning changes: stop, remember, forget, try, regret
📝 Set 1: Gerund-Only Verbs. These verbs are always followed by the gerund (-ing). Type the correct form.
1. She enjoys ___ (read) academic journals in her free time.
2. He avoids ___ (cram) the night before an exam — it never works for him.
3. They finished ___ (write) their final assignment yesterday.
4. She suggested ___ (revise) together before the test.
5. He keeps ___ (fall behind) on his coursework this semester.
6. I can't imagine ___ (drop out) of university now, after all this work.
📝 Set 2: Infinitive-Only Verbs. These verbs are always followed by the infinitive (to + verb). Type the correct form.
1. She decided ___ (enrol) on a new course this term.
2. He hopes ___ (graduate) with honours next year.
3. They agreed ___ (share) their notes before the exam.
4. She managed ___ (catch up) on all the missed lectures.
5. He refused ___ (hand in) his assignment late.
6. I want ___ (pass) this exam with flying colours.
📝 Set 3: Both — Same Meaning. These verbs (like, love, hate, prefer, start, begin, continue) can take either the gerund or the infinitive with no change in meaning. Either form is correct.
1. He loves ___ (learn) new vocabulary by heart.
2. She started ___ (revise) earlier this year.
3. I hate ___ (cram) the night before an exam.
4. They continued ___ (study) even after the scholarship ended.
5. She prefers ___ (write) essays rather than sit exams.
🎯 Set 4: STOP / REMEMBER / FORGET / TRY / REGRET. These verbs change meaning depending on whether they take a gerund or an infinitive. Choose carefully.
1. He stopped ___ (cram) the night before exams — he plans ahead now. [he no longer does it]
2. She stopped ___ (buy) a new textbook on her way to class. [she paused in order to buy it]
3. Remember ___ (hand in) your assignment before the deadline. [don't forget to do it]
4. I remember ___ (learn) my first poem by heart at school. [a memory of the past]
5. Don't forget ___ (revise) chapter five before the test. [a future task]
6. She'll never forget ___ (pass) her final exam with flying colours. [a memory that stays]
7. He tried ___ (catch up) on the missed lectures, but there was simply too much material. [he made an attempt against difficulty]
8. She regrets ___ (not / hit) the books harder before the exam. [she wishes she had]
🎯 Set 5: Mixed Practice. Put the verb in brackets into the correct form — gerund or infinitive.
1. She enjoys ___ (help) other students with their assignments.
2. He decided ___ (change) his degree subject after the first year.
3. They avoid ___ (talk) about their exam results.
4. My friend hopes ___ (graduate) with a scholarship next year.
5. She keeps ___ (forget) to revise for her weekly tests.
6. He managed ___ (finish) his assignment just before the deadline.
7. They suggested ___ (start) a study group before exams.
8. She refused ___ (give) up on her degree, despite falling behind.

Error Correction

Each sentence contains one error. Find it and type the corrected sentence. Type correct if there is no error.

A. Past Perfect Form & Irregular Verbs

Check the V3 form, the position of "had"/"hadn't", and question word order.

🔧 Find the error. Type the corrected sentence — or type correct.
1. "She had wrote her essay before the deadline."
2. "He hadn't finish his homework, so he got in trouble."
3. "Had you already left when I called?"
4. "Did you had studied before the exam?"
5. "By the time she arrived, the lecture already had started."

B. Signal Words & Sequence (already, before, after)

Check the position of signal words and whether the sequence of events matches the tenses used.

🔧 Find the error. Type the corrected sentence — or type correct.
1. "She had already the exam finished when I arrived."
2. "By the time we arrived, the train had leaved."
3. "He had known her for three years before they got married."
4. "I had never seen a penguin after I went to the zoo."
5. "After she handed in her essay, she had felt relaxed."

C. Past Perfect vs Past Simple vs Present Perfect

Check whether the time is a finished, specific past point (Past Simple), a link to now (Present Perfect), or the "past of the past" (Past Perfect).

🔧 Fix the tense error — or type correct.
1. "I have failed my exam last year."
2. "She was exhausted because she has studied all night."
3. "By the time he graduated, he already made many friends."
4. "He has passed his exam three days ago."
5. "I have lived in this city for ten years."

D. Past Perfect Continuous — Common Mistakes

Check the auxiliary order (had + been + V-ing) and whether a state verb has wrongly been put into the continuous.

🔧 Find the error. Type the corrected sentence — or type correct.
1. "She had had been studying all night."
2. "He had being working for hours, so he was tired."
3. "I trusted him because I had been knowing him for years."
4. "How long had you been waiting before the bus arrived?"
5. "The ground was wet because it was been raining all night."

E. Special Expressions — Inversion Errors

Check the word order after No sooner / Hardly / Scarcely, and the connecting word (than/when).

🔧 Find the error. Type the corrected sentence — or type correct.
1. "No sooner I had sat down than the phone rang."
2. "Hardly had the film started than the power went out."
3. "No sooner had she arrived than she felt at home."
4. "It was the first time he drove on the motorway."
5. "Scarcely the lesson had started when the fire alarm rang."