If there are two tenses that belong together in English, it is the past simple and the past continuous. They are a pair, a double act – and once you see how they work side by side, a huge amount of past-tense storytelling suddenly clicks into place. The continuous paints the background; the simple drops in the events. The continuous is the film; the simple is the snapshot.
Students often learn the two tenses separately, then struggle when a sentence asks them to use both at the same time: I was walking home when it started to rain. In this lesson we will look at the form of each tense, what they actually mean, how to combine them with when and while, and the mistakes that even confident learners tend to make. There is a ten-question quiz at the end so you can check yourself.
1. Past simple: the form
The past simple is the workhorse of English storytelling. For most verbs, you simply add -ed to the base form: walk → walked, play → played, watch → watched. Verbs ending in a consonant + y change the y to i: study → studied. Short verbs ending in a single vowel + consonant double the consonant: stop → stopped, plan → planned.
The trickier half of the language is the irregular verbs, which you simply have to learn: go → went, see → saw, have → had, eat → ate, buy → bought. There is no shortcut – flashcards, repetition and lots of reading are the way in.
For negatives and questions, English borrows the auxiliary did and the main verb goes back to its bare infinitive form:
- Affirmative: I watched the match last night.
- Negative: I didn’t watch the match. (Not didn’t watched.)
- Question: Did you watch the match?
The classic mistake here is doubling up the past tense: I didn’t went or Did you saw it? Once did appears, the main verb stays in its base form.
2. Past continuous: the form
The past continuous is much simpler in shape. You take the past form of be – was for I/he/she/it and were for you/we/they – and add the main verb in its -ing form.
- I was reading when you called.
- They were playing in the garden.
- It was raining all afternoon.
For negatives and questions, you change the form of be:
- Negative: She wasn’t listening.
- Question: Were you working at six o’clock?
Notice you never need did here – was and were already do the grammatical work.
3. Past simple: completed actions, sequences and single moments
The past simple is for finished events. It tells you that something happened, started and ended, in the past. It does not care how long it took, only that it is done.
- A single moment: The phone rang at midnight.
- A completed action: I finished my essay yesterday.
- A sequence of events: She came in, sat down, opened her laptop and started typing.
- A past state, now over: We lived in Sliema for three years.
Notice how naturally the past simple chains events together. When you tell someone what you did at the weekend, almost everything you say will be in the past simple, because you are listing things that are over: I got up late, had breakfast on the balcony, went for a swim and met some friends in Valletta.
4. Past continuous: actions in progress, parallel actions, interruptions and background
The past continuous is not really about finished events. It is about something being in the middle of happening at a particular moment in the past.
- An action in progress at a past time: At eight o’clock yesterday I was studying. (Not started, not finished – in the middle.)
- Two parallel actions: While I was cooking, my flatmate was watching a film. (Both in progress at the same time.)
- An action interrupted by another: I was crossing the road when a car horn beeped behind me. (Long action interrupted by a short event.)
- Background description in a story: The sun was shining, the birds were singing and a soft breeze was blowing through the windows.
That last use is why writers love the past continuous. It sets the scene before the action happens. Think of a film opening with a slow camera pan across a street – that is the past continuous. Then a character bursts out of a doorway – that is the past simple kicking in.
5. Combining the two with 'when' and 'while'
This is where the magic happens. Most natural past-tense storytelling mixes the two tenses, and the words when and while are the glue.
The pattern is consistent: the past continuous describes a longer action already in progress, and the past simple describes a shorter event that drops into the middle of it.
- When I arrived, she was cooking dinner. (My arrival = simple, her cooking = continuous, already happening.)
- While I was reading, the phone rang. (Reading = continuous, ringing = simple, the interruption.)
- It started to rain while we were walking home.
- I met my best friend while I was studying in Malta.
A useful rule of thumb: while is almost always followed by the past continuous (while I was working), and when is most often followed by the past simple (when the bell rang). It is not a hard law – both are possible – but if you stick to it you will sound natural the vast majority of the time.
And if both actions are short and finished, you do not need the continuous at all: When the bell rang, the students stood up. Two simple events in sequence.
6. Common mistakes
Mistake 1: Overusing the past continuous. The continuous is not a fancier or more polite version of the simple. If an action is finished and you are telling someone it happened, you want the past simple.
- ✖ Yesterday I was going to the supermarket and I was buying some bread.
- ✔ Yesterday I went to the supermarket and bought some bread.
Mistake 2: Using the continuous with stative verbs. Verbs like like, love, hate, know, understand, want, believe, own describe states, not actions. They normally do not take the -ing form.
- ✖ I was loving the film.
- ✔ I loved the film.
- ✖ She was knowing the answer.
- ✔ She knew the answer.
(Yes, advertising slogans break this rule for effect – but in real conversation and writing, stick to the simple.)
Mistake 3: Inventing irregular past forms. A few high-frequency verbs catch almost everyone out:
- go → went → gone (not goed)
- see → saw → seen (not seed)
- buy → bought → bought
- think → thought → thought
- catch → caught → caught
Mistake 4: Doubling the past tense after did. Once did or didn’t shows up, the main verb resets to its base form: Did you see it?, not Did you saw it?
7. Mini quiz and next step
Choose the correct option in each sentence. Write your answers down before scrolling.
- I (watched / was watching) TV when the lights suddenly (went / were going) out.
- While we (had / were having) dinner, somebody (knocked / was knocking) on the door.
- She (didn’t go / didn’t went) to school yesterday because she was ill.
- What (did you do / were you doing) at ten o’clock last night?
- The sun (shone / was shining) and the children (played / were playing) in the garden.
- I (met / was meeting) my husband while I (studied / was studying) in Malta.
- He (read / was reading) the whole book in one evening.
- (Did you see / Were you seeing) the email I sent yesterday?
- I (loved / was loving) that restaurant when I lived in Valletta.
- While I (walked / was walking) along the seafront, I (saw / was seeing) a dolphin.
Answers:
- was watching / went
- were having / knocked
- didn’t go
- were you doing
- was shining / were playing
- met / was studying
- read
- Did you see
- loved (stative verb)
- was walking / saw
How did you get on? Eight or more correct and you have a strong grip on the past simple / past continuous pair – the next step is using them in real conversation until they feel automatic. If a few tripped you up, that is exactly what classroom practice is for.
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