|
Can,
could and to be able to - ability |
 |
 |
 |
 |
 |
|
|
Can't,
could, may, might, must - probability |
 |
 |
 |
|
|
|
|
Can,
could, may and might - mixed use |
 |
|
|
|
|
|
Could,
should and would |
 |
|
|
Don't
have to and mustn't |
 |
 |
 |
|
|
|
|
Had
better and would rather |
 |
 |
 |
|
|
|
|
|
|
Make,
let and to be allowed to |
 |
 |
 |
|
|
|
|
Might/should/would/ + have + past participle |
 |
 |
 |
|
|
|
|
Must,
have to, should and ought to-obligation |
 |
 |
 |
 |
 |
|
|
Need,
needn't and should |
 |
 |
|
|
|
|
Past
modals of deduction (can't have etc) |
 |
 |
|
|
|
|
|
Supposed to and had better |
 |
|
|
|
|
Used to and be/get used to |
 |
 |
 |
 |
 |
 |
|
|
|