OBLIGATION/NECESSITY: TO GET INTO CANADA UOY HAVE TO HAVE A VISA, YOU HAVE TO FILL OUT THIS FORM, YOU HAVE TO STUDY ENGLISH, POSSIBILITY/PROBABILITY: HE MAY HAVE SOME OTHER OPTIONS, IT MIGHT RAIN IN THE EVENING, WE COULD GO TO THE BEACH, ADVICE/SUGGESTION: WE SHOULD TAKE A TAXI, I REALLY THINK I SHOULD SEE THAT FIRST, SHE SHOULD SEE A DOCTOR, ABILITY: CAN YOU AND YOUR WIFE SWIM?, CAN YOU DIVE?, I CAN SING,

MODAL VERBS - HAVE TO, MAY, MIGHT, COULD, SHOULD, CAN

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