“I was cooking when the phone rang” places one action inside another. Cooking was already in progress; the phone rang at a point during that activity.
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The past continuous helps you describe what was happening around a past time. It does not, by itself, tell you when the activity began or when it finished.
Forming the past continuous
Use was or were followed by the -ing form of the main verb. Use was with I, he, she, and it; use were with you, we, and they.
| Subject | Positive | Negative | Question |
|---|---|---|---|
| I / he / she / it | She was waiting. | She wasn’t waiting. | Was she waiting? |
| You / we / they | They were waiting. | They weren’t waiting. | Were they waiting? |
You always takes were here, whether it means one person or several people. “You was waiting” is not the standard form taught for this tense.
For a short answer, repeat the auxiliary rather than the -ing verb: “Were you sleeping?” “Yes, I was” or “No, I wasn’t.” In this construction, the -ing form is traditionally called a present participle, even though the whole verb phrase refers to the past.
An activity in progress at a past time
“At eight o’clock, I was studying” describes the activity happening around eight. It does not mean that the studying necessarily started at eight.
Compare “At eight o’clock, I started studying.” The past simple explicitly places the beginning of the activity at that time. The choice of tense changes what the sentence tells the reader.
Past continuous and past simple together
Use the past continuous to set the background and the past simple to introduce a completed event within it. “We were walking home when it started to rain” presents the walk as the ongoing situation and the start of the rain as an event.
| Sentence | Focus |
|---|---|
| I cooked dinner last night. | A completed activity, viewed as a whole |
| I was cooking dinner at seven. | The activity in progress at seven |
| I was cooking dinner when Jo arrived. | An ongoing activity with an event during it |
| I cooked dinner when Jo arrived. | Often suggests that Jo’s arrival prompted or preceded the cooking |
The shorter event does not always stop the longer activity. In “I was reading when the clock struck twelve,” the person may have continued reading.
When and while are clues, not automatic tense rules
While often introduces an activity in progress: “While I was working, my brother was watching a film.” Both activities continued during an overlapping period.
When can introduce the background or the event: “When I was walking home, I found a wallet.” Choose the tense from the meaning of the action, rather than assuming every verb after when must be past simple.
Background in a short story
Read this scene and notice how the tenses divide the work. The continuous forms describe the scene; the simple forms move the events forward.
The café was closing, and the staff were cleaning the tables. I was looking for my coat when I noticed a small notebook under my chair. I picked it up and asked the server who it belonged to.
Was closing, were cleaning, and was looking provide background. Noticed, picked up, and asked introduce the events that follow one another.
Verbs that usually describe states
Verbs such as know, believe, own, and need normally take a simple form when they describe a state. “I knew the answer” is the usual wording, rather than “I was knowing the answer.”
Some verbs can describe either a state or an activity. “I thought the answer was correct” reports an opinion; “I was thinking about the answer” describes an ongoing mental activity. Look at the meaning in the sentence, not only the verb on its own.
Common form mistakes
| Incorrect | Correct | Explanation |
|---|---|---|
| You was speaking. | You were speaking. | You takes were, including one listener. |
| She was read. | She was reading. | Use an -ing form after was here. |
| Did they were waiting? | Were they waiting? | Invert were and the subject; do not add did. |
| I wasn’t understand. | I didn’t understand. | Understand usually describes a state here. |
An account of a past plan may also use the continuous, as in “We were leaving the next morning.” The future-in-the-past meaning comes from the context and time reference; it is not what every past continuous sentence expresses.
Practice: describe the moment
Complete the verbs or answer the question. For the short story task, use the surrounding action to decide whether to show an ongoing activity or an event.
- At midnight, we _____ home. (drive)
- One person is addressed: “_____ you waiting for me?”
- I _____ an email when the lights _____ out. (write / go)
- Correct: “Did she was sleeping?”
- Choose: “I knew / was knowing the address.”
- While Ana _____ dinner, Leo _____ the table. Use cook and set to show simultaneous activities in progress.
- Does “I was reading at six” tell us that I finished the book?
- Write a question for this answer: “Yes, they were studying.”
Answers and explanations
- Were driving. The activity was in progress at midnight.
- Were. You takes were even when it refers to one person.
- Was writing; went. Writing is the background activity; the lights going out is the event.
- Was she sleeping? Put was before the subject without did.
- Knew. This is the usual simple form for the state of knowing.
- Was cooking; was setting. Both activities are presented as ongoing during the same period.
- No. The sentence describes activity at a particular time, without establishing completion.
- Were they studying? The auxiliary and subject exchange positions in the question.
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