Past Perfect Tense – English Grammar Exercises for B1
Read the following story about a stressful experience at the airport. Choose the correct option (a, b, or c) to complete each sentence.
1 I was standing in the middle of the terminal when I suddenly realized that I ______ my passport on the kitchen table.
(a) left
(b) have left
(c) had left
2 When I reached the check-in desk, my heart sank. I remembered that I ______ to lock the front door of my house!
(a) had forgotten
(b) forgot
(c) had forgotted
3 I opened my suitcase to get a jacket and noticed that I ______ the wrong bag. It was my brother’s!
(a) packed
(b) had pack
(c) had packed
4 I desperately searched my backpack and discovered that I ______ my phone charger.
(a) haven’t brought
(b) hadn’t brought
(c) didn’t bring
5 She panicked at the security gate because she realized she ______ her boarding pass somewhere in the taxi.
(a) had dropped
(b) dropped
(c) had drop
6 I rushed outside to check, but the taxi driver ______ away with my wallet on the back seat.
(a) already drove
(b) had already drive
(c) had already driven
7 By the time I remembered where I put my sunglasses, the plane ______ off without me.
(a) had took
(b) had taken
(c) took
8 I angrily asked my husband if he ______ the travel adapter, but he just shook his head.
(a) had packed
(b) packed
(c) has packed
9 We were freezing while waiting outside the airport because we ______ any winter jackets.
(a) didn’t take
(b) hadn’t took
(c) hadn’t taken
10 I suddenly understood why my bag felt so incredibly light; I ______ my heavy laptop out the night before!
(a) took
(b) have taken
(c) had taken
11 When I finally found my electronic ticket on my phone, the boarding gate ______.
(a) had just closed
(b) had just close
(c) just closed
12 I was incredibly thirsty at the security check because I ______ to drink my water bottle before arriving.
(a) forgot
(b) had forgotten
(c) had forget
13 He looked completely shocked and pale when he realized what he ______.
(a) had done
(b) did
(c) had did
14 I felt terribly guilty because I ______ my best friend’s expensive camera at the hotel.
(a) left
(b) had left
(c) had leaved
15 I couldn’t even buy a cheap toothbrush at the terminal pharmacy because I ______ all my cash paying for the cab.
(a) had spend
(b) spent
(c) had spent
16 Only after we reached the final security checkpoint did I realize I ______ the liquids from my carry-on bag.
(a) didn’t remove
(b) hasn’t removed
(c) hadn’t removed
17 The grumpy customs officer looked at my paper and asked why I ______ my immigration form.
(a) hadn’t signed
(b) hadn’t sign
(c) didn’t sign
18 I was terrified that my luggage was permanently lost, but I soon discovered that my sister ______ it up by mistake.
(a) picked
(b) have picked
(c) had picked
19 I felt so stupid at the airline counter; I ______ the flight times online, but I had never actually clicked “purchase”!
(a) had checked
(b) checked
(c) had check
20 She burst into tears upon realizing that a pickpocket ______ her purse while she was sleeping on the airport train.
(a) stole
(b) had stoled
(c) had stolen
ANSWER KEY & EXPLANATIONS
1 (c) had left
- Explanation: The realization happened in the past (“realized”), but the action of leaving the passport happened before that moment. Therefore, the Past Perfect is required.
- Why others are wrong: (a) is the Past Simple, which fails to show the correct sequence of events. (b) is the Present Perfect, which connects to the present and does not fit a past narrative.
2 (a) had forgotten
- Explanation: You remembered (Past Simple) an action that failed to happen further back in the past (Past Perfect).
- Why others are wrong: (b) is the Past Simple (Common Mistake). (c) is a basic grammar error because the past participle of ‘forget’ is ‘forgotten’, not ‘forgotted’.
3 (c) had packed
- Explanation: The packing happened at home, long before the person opened the suitcase at the airport.
- Why others are wrong: (a) is the Past Simple. (b) uses the base verb ‘pack’ instead of the past participle ‘packed’.
4 (b) hadn’t brought
- Explanation: The discovery happened in the past, but the failure to bring the charger occurred before the trip started.
- Why others are wrong: (c) is the Past Simple (didn’t bring). (a) uses the Present Perfect (haven’t brought), which is grammatically incorrect in a past time frame.
5 (a) had dropped
- Explanation: The dropping of the boarding pass happened in the taxi before she reached the security gate.
- Why others are wrong: (b) is the Past Simple. (c) lacks the “-ed” ending required for the past participle.
6 (c) had already driven
- Explanation: The taxi leaving happened before the speaker rushed outside. “Already” is a strong signal word for perfect tenses.
- Why others are wrong: (a) uses the Past Simple. (b) incorrectly uses the base verb ‘drive’ instead of the past participle ‘driven’.
7 (b) had taken
- Explanation: The plane took off before the speaker remembered the sunglasses.
- Why others are wrong: (c) is the Past Simple. (a) is a structural error; ‘took’ is the V2 form, but the Past Perfect requires the V3 form ‘taken’.
8 (a) had packed
- Explanation: In reported questions (“asked if he had…”), the tense shifts back. The packing was supposed to happen before the asking.
- Why others are wrong: (b) is the Past Simple. (c) is the Present Perfect, which does not align with the past tense reporting verb “asked”.
9 (c) hadn’t taken
- Explanation: Freezing is the result (Past Simple) of an earlier action: not taking a jacket (Past Perfect).
- Why others are wrong: (a) is the Past Simple. (b) incorrectly uses the V2 ‘took’ instead of the V3 ‘taken’.
10 (c) had taken
- Explanation: The action of taking the laptop out happened “the night before,” which is prior to understanding why the bag felt light.
- Why others are wrong: (a) is the Past Simple. (b) uses Present Perfect, breaking the sequence of past tenses.
11 (a) had just closed
- Explanation: The gate closing happened moments before the ticket was found. The Past Perfect with “just” perfectly captures this frustrating timeline.
- Why others are wrong: (c) uses the Past Simple. (b) lacks the “-d” on the past participle ‘closed’.
12 (b) had forgotten
- Explanation: Forgetting to drink happened before arriving at the security check.
- Why others are wrong: (a) is the Past Simple. (c) uses the base verb ‘forget’ instead of the V3 ‘forgotten’.
13 (a) had done
- Explanation: The realization happened after the action was already completed.
- Why others are wrong: (b) is the Past Simple. (c) is a severe structural error; ‘did’ is V2, while ‘done’ is the required V3
14 (b) had left
- Explanation: Feeling guilty is the emotional response to an action that occurred previously (leaving the camera).
- Why others are wrong: (a) is the Past Simple. (c) applies regular verb rules to an irregular verb (‘left’, not ‘leaved’).
15 (c) had spent
- Explanation: The inability to buy the toothbrush was caused by spending the money earlier in the cab ride.
- Why others are wrong: (b) is the Past Simple. (a) uses the base verb ‘spend’ instead of the past participle ‘spent’.
16 (c) hadn’t removed
- Explanation: The realization happened at the checkpoint, but the failure to remove the liquids happened during the packing phase.
- Why others are wrong: (a) is the Past Simple. (b) uses Present Perfect, which is incorrect in a purely past narrative.
17 (a) hadn’t signed
- Explanation: The signing should have happened before the officer asked about it.
- Why others are wrong: (c) is the Past Simple. (b) uses the base verb ‘sign’ instead of the past participle ‘signed’.
18 (c) had picked
- Explanation: The sister picked up the bag before the speaker discovered it.
- Why others are wrong: (a) is the Past Simple. (b) uses the Present Perfect, which doesn’t fit the past context.
19 (a) had checked
- Explanation: Checking the flight times happened at home, prior to standing at the airline counter feeling stupid.
- Why others are wrong: (b) is the Past Simple. (c) lacks the “-ed” ending for the past participle.
20 (c) had stolen
- Explanation: The purse was stolen while she slept, which happened before she woke up and realized it was gone.
- Why others are wrong: (a) is the Past Simple. (b) is a structural error; ‘stoled’ is not a word. The forms are steal/stole/stolen.
GRAMMAR POINTS TO REMEMBER
- The Timeline Concept: The Past Perfect (had + Past Participle) is used to describe an action that was completed before another action in the past.
- Cognitive Verbs as Triggers: When we tell stories, we often use verbs of perception and thought in the Past Simple, such as realized, remembered, noticed, discovered, or found out.
- The Grammar Rule: Because you are “realizing” something that already happened before that exact moment, the action that follows is put into the Past Perfect.
- Example: I reached into my pocket and realized (Action 2 – closer to present) that I had lost my keys (Action 1 – further in the past).
- Watch your V3s! A very common mistake at the B1 level is knowing the had rule, but using the Past Simple verb (V2) instead of the Past Participle (V3). Always double-check irregular verbs (e.g., had gone, had taken, had written).