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Exercise 1
Choose the correct verb form, Past Simple or Past Perfect, to complete each sentence.
Example: She was tired because she (worked / had worked) all day.
Answer: She was tired because she had worked all day.

Past Simple or Past Perfect
When we talk about things that happened in the past, we often use two tenses: the past simple and the past perfect. Sometimes we need to show that one thing happened before another thing in the past. This is when the past perfect is very useful.
In this lesson, you will learn:
- How to form the past simple and the past perfect
- When to use each tense
- How to use them together in one sentence
Let's start with a simple story:
Anna arrived at the cinema at 7:30. The film started at 7:00. When Anna arrived, the film had already started.
The film started first. Anna arrived second. We use the past perfect for the thing that happened first, and the past simple for the thing that happened second.
The Past Simple
We use the past simple to talk about a finished action in the past. We often say when it happened.
How to form the past simple:
For regular verbs, add -ed to the base verb.
For irregular verbs, use the second form of the verb (you must learn these).
| Subject | Regular verb (walk) | Irregular verb (eat) |
|---|---|---|
| I | walked | ate |
| You | walked | ate |
| He / She / It | walked | ate |
| We | walked | ate |
| They | walked | ate |
Past simple examples:
- She watched a film last night.
- They went to the park yesterday.
- He called me at eight o'clock.
- I finished my homework after dinner.
Negative past simple: Use did not (didn't) + the base verb.
- She didn't watch the news.
- They didn't go to school.
Question past simple: Use Did + subject + base verb.
- Did she watch the film?
- Did they go to the park?
The Past Perfect
We use the past perfect to talk about something that happened before another action in the past. Think of it as "the earlier past."
How to form the past perfect:
Use had + the past participle of the verb.
The past participle of regular verbs is the same as the past simple: walk → walked.
Irregular verbs have their own past participle form: eat → eaten, go → gone, see → seen.
| Subject | had | Past Participle | Example |
|---|---|---|---|
| I | had | eaten | I had eaten before he arrived. |
| You | had | finished | You had finished the test. |
| He / She / It | had | gone | She had gone home already. |
| We | had | seen | We had seen that film before. |
| They | had | left | They had left when I called. |
Past perfect examples:
- When I arrived, she had already left.
- He was hungry because he hadn't eaten lunch.
- They knew the answer because they had studied hard.
- I had never seen snow before I visited London.
Negative past perfect: Use had not (hadn't) + the past participle.
- She hadn't finished her homework when the teacher asked for it.
- We hadn't met before the party.
Question past perfect: Use Had + subject + past participle.
- Had she left before you arrived?
- Had they eaten dinner?
Common Irregular Past Participles
Here are some important irregular verbs you need to know for the past perfect:
| Base Verb | Past Simple | Past Participle |
|---|---|---|
| go | went | gone |
| eat | ate | eaten |
| see | saw | seen |
| do | did | done |
| have | had | had |
| leave | left | left |
| take | took | taken |
| come | came | come |
| speak | spoke | spoken |
| buy | bought | bought |
| know | knew | known |
| write | wrote | written |
Using Past Simple and Past Perfect Together
When we tell a story with two past actions, we use both tenses together. The past perfect shows which thing happened first. The past simple shows what happened second.
Look at this timeline idea:
Action 1 (earlier) → Past Perfect
Action 2 (later) → Past Simple
Examples:
- When I got to the station, the train had already left.
(First: the train left. Second: I got to the station.) - She was tired because she hadn't slept well.
(First: she didn't sleep well. Second: she felt tired.) - He recognised the man because he had seen him before.
(First: he saw the man. Second: he recognised him.) - They couldn't get in because they had forgotten their tickets.
(First: they forgot their tickets. Second: they couldn't get in.)
Signal Words
Certain words help you know which tense to use. These are called signal words.
| Signal Word | Tense | Example |
|---|---|---|
| yesterday | Past Simple | I went to the shops yesterday. |
| last week / last year | Past Simple | She started a new job last week. |
| ago | Past Simple | We moved here two years ago. |
| in 2010 | Past Simple | He was born in 2010. |
| already | Past Perfect | She had already eaten when we arrived. |
| just | Past Perfect | He had just left when I called. |
| never … before | Past Perfect | I had never seen the sea before. |
| by the time | Past Perfect | By the time we arrived, the show had started. |
| when | Both (context decides) | When she arrived, he had gone home. |
| after | Past Perfect for earlier action | After I had finished, I went to bed. |
| before | Past Perfect for earlier action | Before she had spoken, he left. |
Important Differences and Special Cases
When do we NOT need the past perfect?
If it is already clear which action happened first (because of the word before or after), you can sometimes use the past simple for both actions. However, using the past perfect makes the meaning clearer.
Both are possible:
- She left before he arrived. ✅ (past simple for both — clear order)
- She had left before he arrived. ✅ (past perfect — also correct, very clear)
For an A2 level, it is safer to use the past perfect when one action clearly happened before another past action.
When the two actions happen at the same time
If two things happened at the same time in the past, use the past simple for both. Do not use the past perfect.
Example:
- She sang and he played the guitar. ✅ (same time)
- When I walked in, everyone was talking. ✅ (use past continuous for background actions)
Contractions with had
In spoken and informal English, we often shorten had. This is called a contraction.
| Full Form | Contraction | Example |
|---|---|---|
| I had | I'd | I'd already eaten. |
| You had | You'd | You'd finished before me. |
| He had | He'd | He'd gone home. |
| She had | She'd | She'd left already. |
| We had | We'd | We'd seen that film before. |
| They had | They'd | They'd never met before. |
| had not | hadn't | She hadn't finished yet. |
Be careful! The contraction 'd can also mean would. Look at the context to understand the meaning.
He'd gone = He had gone (past perfect) ✅
He'd go = He would go (conditional) ✅
Common Mistakes
❌ When I arrived, the film already started.
✅ When I arrived, the film had already started.
❌ She had went to the shop before lunch.
✅ She had gone to the shop before lunch. (Use the past participle, not the past simple form.)
❌ He had never saw snow before that day.
✅ He had never seen snow before that day. (The past participle of see is seen, not saw.)
❌ They haved finished the work.
✅ They had finished the work. (Had does not change — it is always had for all subjects.)
❌ I had eaten before I had gone to the cinema.
✅ I had eaten before I went to the cinema. (Use past perfect only for the earlier action. Use past simple for the second action.)
❌ Yesterday, she had called me.
✅ Yesterday, she called me. (Use past simple with specific time words like yesterday, last week, two days ago.)
❌ Before he leaved, he locked the door.
✅ Before he left, he locked the door. (Leave is irregular: leave → left → left.)
Past Simple or Past Perfect: Quick Summary
| Past Simple | Past Perfect | |
|---|---|---|
| Use for | A finished action in the past | An action that happened before another past action |
| Form | verb + -ed / irregular form | had + past participle |
| Negative | didn't + base verb | hadn't + past participle |
| Question | Did + subject + base verb? | Had + subject + past participle? |
| Signal words | yesterday, last week, ago, in 2010 | already, just, never … before, by the time |
| Example | She watched the news. | She had already watched the news when he arrived. |
Remember these two simple rules:
- Use the past simple for a single finished action in the past.
- Use the past perfect (had + past participle) when you want to show that one past action happened before another past action.
Now practise past simple or past perfect in the exercises below.
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