MUST, MUSTN’T, CAN, CAN’T, COULD, COULDN’T, SHOULD or SHOUL’T MUST, MUSTN’T, CAN, CAN’T, COULD, COULDN’T, SHOULD or SHOUL’T
Modals of Probability (can, could, may, might, must, can't) Modals of Probability (can, could, may, might, must, can't)