|
MUSTN'T
|
prohibition
|
|
SHOULD
|
advice
|
|
CAN / BE ABLE TO
|
ability
|
|
MUST BE
|
certainty
|
|
MIGHT / MAY
|
future possibility
|
|
MUST
|
necessity
|
|
CAN'T BE
|
impossibility
|
|
NEEDN'T / DON'T HAVE TO
|
lack of necessity
|
|
COULD / WOULD
|
polite request
|
|
CAN / MAY / COULD
|
permission
|
Modal Perfect
|
MUST + HAVE + Past Participle (3rd column)
|
certainty that something was true
|
|
MAY / MIGHT / COULD + HAVE + Past Participle (3rd column)
|
possibility that something was true
|
|
COULD + HAVE + Past Participle (3rd column)
|
ability to have done, but didn't
|
|
WOULD + HAVE + Past Participle (3rd column)
|
willingness to do, but couldn't
|
|
SHOULD / OUGHT TO + HAVE + Past Participle (3rd column)
|
criticism / regret
|
|
CAN'T + HAVE + Past Participle (3rd column)
|
impossibility that something was true
|
EXTRA EXERCISE TO PRATICE MODAL VERBS
Modal Perfect
