MODALS AND SEMI-MODALS VERBS

OBLIGATION AND NECESSITY

1-MUST/MUSTN'T

2-HAVE TO/NEED TO

3-MUST/HAVE TO/NEED TO

LACK OF NECCESSITY

NOT HAVE TO,

NEED NO,

NOT NEED TO

PROHIBITION AND CRITICISM

1- MUST /MUSTN'T

2- CAN'T OR MAY NOT

3- COULDN'T

4- SHOULD/SHOULDN'T + HAVE+ PAST PART.

ADVISE, RECOMENDATION,

MUST, SHOULD, OUGHT TO, HAD BETTER

PERMISSION

CAN, COULD, MAY, MIGHT

ABILITY

CAN, CAN'T, COULD, COULDN'T, MIGHT,

BE ABLE TO

POSIBILITY,

PROBABILITY

CAN, COULD, MAY, MIGHT, SHOULD

DEDUCTION

MUST, CAN'T, COULDN'T

OFFERS, PROMISES, SUGGESTIONS, REQUESTS, ORDERS

CAN, COULD, MAY, MIGHT, WILL, SHALL, WOULD