| Modal | Modal in negative | Modal | Modal in negative |
| Can | Can not/ can’t | Shall | Shall not |
| Could | Could not/ couldn’t | Should | Should not/shouldn’t |
| May | May not | Will | Will not/won’t |
| Might | Might not/mightn’t | would | Would not/wouldn’t |
| Must | Must not/mustn’t | Ought to | Ought not to |
| Need | Need not/needn’t |
Examples:
- Edward can swim= Edward cannot swim
- We must go there= We must not go there