Past Simple (also known as Simple Past) is the tense used in English to talk about completed actions in the past: things that happened yesterday, last week, or many years ago. It is one of the most common tenses, and it is easier to understand than it seems. On this page, you will learn when to use Past Simple, how to form it with regular and irregular verbs, how to build affirmative, negative, and question sentences with did, and which time markers indicate its use. At the end, there is an interactive exercise to help you master the rules.
When to use Past Simple
Past Simple describes an action that started and finished in the past. The time of the action is usually known or understood from the context. Main cases:
- Completed action in the past: I visited London last year.
- A sequence of actions one after another: I woke up, brushed my teeth and went to school.
- Repeated actions in the past (habits): We played tennis every Sunday.
- States in the past: They had a house by the sea.
The main difference from Present Simple: the action is already finished and belongs to the past, rather than happening now or in general.
How to form Past Simple: affirmative, negative, question
There are three types of sentences in Past Simple. Remember the key rule: did and didn't already indicate the past tense, so in questions and negatives, the main verb returns to its base form (V1), without the -ed ending or the second form. The entire system is in the table below.
| Form | Structure | Example |
|---|---|---|
| + Affirmative | Subject + V2 / V-ed | She worked yesterday.They went to the cinema. |
| − Negative | Subject + did not (didn't) + V1 | She didn't work yesterday.They didn't go to the cinema. |
| ? Question | Did + subject + V1 ? | Did she work yesterday?Did they go to the cinema? |
Regular verbs: -ed ending and spelling rules
Regular verbs form the Past Simple very simply — by adding the ending -ed to the base form: work → worked, talk → talked. However, there are four spelling rules for adding -ed. They are summarized in the guide below.
Also, remember how -ed is pronounced: after voiceless consonants (walked) — as /t/, after voiced consonants and vowels (played) — as /d/, and after t and d (wanted, needed) — as /ɪd/, adding an extra syllable.
play → played
live → lived
carry → carried
plan → planned
Irregular verbs in Past Simple: table
Irregular verbs do not follow the -ed rule — each has its own second form (V2) that you simply need to memorize. There aren't that many of them, and the most common ones appear in almost every sentence. Here is a mini-table of the ones you should learn first.
| Base form | Past Simple (V2) | Translation |
|---|---|---|
| go | →went | to go |
| have | →had | to have |
| do | →did | to do |
| see | →saw | to see |
| make | →made | to make |
| get | →got | to get |
| take | →took | to take |
| come | →came | to come |
Time markers: Past Simple clue words
Often, sentences contain clue words that directly indicate that you need the Past Simple. If you see them, you almost certainly need to put the verb in the past tense:
- yesterday;
- last week / month / year;
- ... ago: two days ago, a long time ago;
- in 2010, in the 1990s;
- when I was a child.
Example: She called me two hours ago.
Example sentences in Past Simple with analysis
Example 1. Affirmative with a regular verb
Sentence: We watched a film last night.
Step 1. The time marker last night indicates the past tense → you need Past Simple.
Step 2. watch is a regular verb, so we form it by adding -ed: watch → watched.
Step 3. Affirmative sentences follow the structure Subject + V-ed: We watched… Done.
Example 2. Negative with 'did not'
Sentence: He didn't buy the tickets.
Step 1. This is a negative sentence, structure: Subject + did not (didn't) + V1.
Step 2. didn't already indicates the past tense, so we put the main verb in the base form: buy (not bought and not buyed).
Step 3. Putting it together: He didn't buy… ❌ It would be an error to say He didn't bought — using 'did' and the second form simultaneously.
Example 3. Question with 'did' and an irregular verb
Sentence: Did you see this film?
Step 1. Questions follow the structure: Did + subject + V1 ?
Step 2. see is an irregular verb, but in a question with 'did', it does NOT turn into 'saw': the auxiliary 'did' already carries the past tense, and the main verb stays in the base form — see.
Step 3. Result: Did you see…? ❌ Incorrect: Did you saw…?
Common mistakes in Past Simple
-
Present tense instead of past: ❌ I go to the park yesterday.
If there is a past time marker (yesterday), the verb must be in Past Simple: ✅ I went to the park yesterday.
-
Adding -ed to an irregular verb: ❌ I goed / buyed / seed.
Irregular verbs have their own second form, you need to memorize them: ✅ went, bought, saw. The -ed ending is only for regular verbs.
-
Using 'did' + the second form of the verb simultaneously: ❌ Did you went to the party?
Since 'did' already indicates the past tense, the main verb returns to the base form: ✅ Did you go to the party?
-
Building negatives without 'did': ❌ I no went / I not go to school.
Negatives are formed using 'did not (didn't)' + base form: ✅ I didn't go to school.
-
Spelling errors with -ed: ❌ stoped, studyed, planed.
Remember the rules: after a short vowel, the consonant doubles (stop → stopped, plan → planned), and consonant + y changes to i (study → studied).
Questions and answers
When is Past Simple used?
Past Simple is used for completed actions in the past (I visited London last year), sequences of actions, repeated habits in the past (we played tennis every Sunday), and states in the past (they had a house). The action is finished and belongs to the past.
How is Past Simple formed for regular verbs?
The ending -ed is added to the base form of the verb: work → worked, play → played. There are spelling rules: if the verb ends in -e, only -d is added (like → liked); consonant + y changes to i (study → studied); after a short vowel, the consonant doubles (stop → stopped).
What is the difference between regular and irregular verbs in Past Simple?
Regular verbs form the past tense according to the rule — by adding -ed. Irregular verbs have their own second form (V2) that you need to memorize: go → went, have → had, see → saw, make → made. The -ed rule does not apply to them.
Why is 'did' needed in questions and negatives?
The auxiliary verb 'did' (for negatives — 'did not / didn't') takes on the role of indicating the past tense. Therefore, the main verb in questions and negatives stays in the base form, without -ed or the second form: Did you go? / I didn't go. You cannot say 'Did you went?'.
Which words indicate Past Simple?
Past Simple time markers: yesterday, last week / month / year, ... ago (two days ago), in 2010, in the 1990s, when I was a child. If such a word is in the sentence, you almost certainly need the simple past tense.
How is the -ed ending pronounced?
The -ed ending is pronounced differently: after voiceless consonants as /t/ (worked, walked), after voiced consonants and vowels as /d/ (played, lived), and after t and d sounds as /ɪd/, adding an extra syllable (wanted, needed).
