| Modal |
Past Modal |
Negative |
Negative Past |
| Can |
Could |
Can't
Cannot |
Couldn't
Could not |
| Could |
Could have |
Could not |
Couldn't have
Could not have |
| Will |
Would |
Won't
Will not |
Wouldn't
Would not |
| Would |
Would have |
Wouldn't
Would not |
Wouldn't have
Would not have |
| May |
May have |
May not |
May not have |
| Might |
Might have |
Might not |
Might not have |
| Should |
Should have |
Should not |
Should not have |
| Must |
Had to
Must have |
Must not
Mustn't |
Must not have |
| Ought to |
Ought to have |
Ought not to |
Ought not to have |
Have to
Has to |
Had to |
Don't have to
Doesn't have to |
Didn't have to
Did not have to |
Have got to
Has got to |
|
|
|
Be going to
Be supposed to |
Was/were |
Is/are/am/not going to
Isn't/aren't/am not supposed to |
Wasn't/weren't going to
Wasn't/weren't supposed to |
| Be able to |
Was/were able to |
Isn't/aren't able to |
Wasn't/weren't able to |
| Be to |
Was/were to |
Is/are/am/not to |
Wasn't/weren't to |
Need to
Needs to |
Needed to |
Doesn't need to |
Didn't need to
Needn't |
| Had better |
|
Had better not |
|
| Used to |
|
Didn't use to |
|
| Be about to |
Was/were about to |
Is/are/am not about to |
Wasn't/weren't about to |
| Would rather |
Would rather have |
Would rather not |
Would rather not have |
