Grammar guide Updated 2026-09-10
Past Simple: Rules, Examples and Common Mistakes
The past simple is the tense of finished actions: things that happened at a known time in the past and are over. Regular verbs take -ed; the hundred or so verbs you use most take nothing of the kind. This guide puts the rules in one table, spells out the -ed patterns, shows how did carries the grammar in questions and negatives, and lists the mistakes that turn up again and again in learners' writing.
Past simple: form at a glance
| Subject | Verb form | Example |
|---|---|---|
| any subject | regular verb + -ed | We visited my grandmother last Sunday. |
| any subject | irregular verb (own form) | She went to Lisbon in June. |
| any subject | did not (didn't) + base verb | He didn't call me yesterday. |
| any subject | Did + subject + base verb? | Did you finish the report? |
| any subject | was / were | They were late for the lesson. |
When to use the past simple
Use the past simple for a completed action or state at a definite time in the past. The time can be stated or simply understood:
- Finished actions with a past time expression: I saw him yesterday. We moved here in 2019. She called me ten minutes ago.
- A sequence of events: He opened the door, put down his bag and sat on the sofa.
- Past states and habits: I lived in Berlin for three years. We always walked to school.
- Polite questions and requests: Did you want to see the menu?
The tense answers the question what happened? If the action is still connected to the present, or the time is not finished, English reaches for the present perfect instead — I have seen him today, not I saw him today if the day is not over. Our past simple vs present perfect guide takes that contrast apart.
Spelling the regular -ed form
Regular verbs follow four spelling patterns. Most verbs add -ed: work → worked, play → played, visit → visited. Verbs ending in -e add only -d: like → liked, live → lived, decide → decided. Consonant + y changes y to -ied: study → studied, carry → carried, try → tried — but vowel + y keeps it: play → played, enjoy → enjoyed. One-syllable verbs ending in one vowel + one consonant double the consonant: stop → stopped, plan → planned, chat → chatted.
Pronunciation is the quiet trap. The ending is /t/ after voiceless sounds (worked, stopped, watched), /d/ after voiced sounds and vowels (played, lived, opened), and adds a whole syllable /ɪd/ after t or d (wanted, needed, decided).
Irregular verbs: learn them in families
Irregular verbs do not take -ed, and there is no rule to derive them — but there are patterns that make them far easier to remember. Group them by shape: same for all three forms (cut / cut / cut, put / put / put, let / let / let); past simple and participle identical (buy / bought / bought, think / thought / thought, teach / taught / taught); all three different (go / went / gone, see / saw / seen, take / took / taken, write / wrote / written); vowel change only (sing / sang / sung, begin / began / begun, drink / drank / drunk).
Fifteen verbs cover a large share of everyday speech: be, have, do, say, go, get, make, know, think, take, see, come, give, find, tell. Drill those first, then work through the full 120-verb table with meanings.
Negatives and questions: did does the work
In negatives and questions, did carries the past meaning, so the main verb returns to its base form. He went home → He didn't go home → Did he go home? The same rule applies whatever the verb: Did she see the film? We didn't have time.
The exception is be, which never uses did: Was he angry? They weren't at home. Short answers use the auxiliary only: Did you like it? — Yes, I did. No, I didn't.
The mistakes learners make most often
Almost every wrong sentence in this area is one of the five below. Read the pair out loud — the wrong version then the right one — and the contrast does the teaching.
✘ I didn't went to the party. → ✔ I didn't go to the party.
Did already marks the past. After didn't, the verb must be the base form.
✘ Did you saw the news? → ✔ Did you see the news?
Same rule in questions: did + subject + base verb, never did + past form.
✘ I have seen him yesterday. → ✔ I saw him yesterday.
Yesterday is a finished past time, so it excludes the present perfect.
✘ She was go to the market. → ✔ She went to the market.
Was is not a helper for the past simple of other verbs. It only forms the past of be itself and the past continuous.
✘ We was very tired after the trip. → ✔ We were very tired after the trip.
Be has two past forms: was with I, he, she, it and were with you, we, they.
How to practise the past simple
Past simple accuracy comes from two habits: recognising the irregular forms instantly, and remembering to strip the verb back after didn't. Both are built by retrieval, not by reading lists.
The free past simple drill mixes multiple choice, gap fill and listening dictation across thirty questions, each with an explanation. Add the irregular verbs table and drill for the verbs that refuse to be regular, then check whether the tense survives mixed company in the mixed review or today's Quiz of the Day. For the classroom, print the drill as a worksheet with an answer key or combine it with other topics in the worksheet builder.
Take the Past Simple drill (30 questions) → Build a worksheet Quiz of the Day
Frequently asked questions
When do we use the past simple?
Use it for completed actions and states at a definite time in the past, often with time words such as yesterday, last week, in 2019 or two days ago: I visited my grandmother last Sunday. It answers the question what happened?
How do we form the past simple of regular verbs?
Add -ed to the base verb: work → worked. Verbs ending in -e add only -d (like → liked), consonant + y changes to -ied (study → studied), and one-syllable verbs with one vowel + one consonant double it (stop → stopped).
What is the past simple of irregular verbs?
Irregular verbs take their own forms and must be learned: go → went, see → saw, eat → ate, buy → bought, take → took. Group them by pattern — cut/cut/cut, buy/bought/bought, go/went/gone — and drill them a few at a time; the full 120-verb table is on the irregular verbs page.
Why is I didn't went wrong?
Because did already puts the sentence in the past. The main verb then stays in its base form: I didn't go, she didn't see, we didn't have time. The same happens in questions: Did you go? not Did you went?
Keep reading
Every guide on this blog is paired with a free drill: the same rules, applied question by question, with explanations and a printable worksheet.