| Who? | People |
|---|---|
| What? | Things |
| Where? | Places |
| When? | Time |
In order to change an affirmative statement into a negative statement, did not is placed after the subject, and the form of the verb is changed to the bare infinitive.
| Positive statement | Negative statement |
|---|---|
| I worked. | I didn't work. |
| You worked. (singular 1 and plural 1+) | You didn't work. |
| He/She worked. | He/She didn't work. |
| It worked. | It didn't work |
| We worked. | We didn't work. |
| They worked. | They didn't work. |
| Positive statement | Negative statement | Question ? |
|---|---|---|
| I worked. | I didn't work. | Did I work? |
| You worked. (singular 1 and plural 1+) | You didn't work. | Did you work? |
| He/She worked. | He/She didn't work. | Did he/she work? |
| It worked. | It didn't work | Did it work? |
| We worked. | We didn't work. | Did we work? |
| They worked. | They didn't work. | Did they work? |
| Did | I/he/she/it/we/you/ they | have something? | do something? | like something? | want something? |
We use "why" to ask for a reason.
For example:-
"Why do people smoke, even though they know it's bad for them?"
Study the word order in these questions:-
| did(n't) | + subject | + infinitive | ||
| Did | he | visit | you? | |
| Didn't | he | visit | you? | |
| What | did | you | do | yesterday? |
| When | did | you | finish | your course? |
| Where | did | you | go | on holiday? |
| Who | did | you | see | at the park? |
| Why | didn't | he | visit | you? |
| "Mr Bean, what did you do yesterday?" |  |
"I taught a new class." |
| "What did you teach them?" |  |
"I taught them English." |
| "Did you walk to work?" |  |
"No, I didn't walk, I drove." |
| "Where did you go, before you got to work?" | |
"I went to the newsagents." |
| "Why did you go to the newsagents?" | "I went there to buy a newspaper." | |
| "When did you start work?" |  |
"I started at 9.00 am." |
| "How many classes did you teach?" |  |
"I taught three classes." |
| "Did you teach any evening classes?" |  |
"No, I didn't." |
| "Did you teach English last Saturday?" |  |
"Yes, I did." |
| "Did anyone else teach English yesterday?" |  |
"Yes, Miss Smith taught my old class." |
| "Did she teach on Saturday?" |  |
"No, she didn't." |
| "What time did you finish work?" |  |
"I finished at 4 o'clock." |
