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689, Study the to how are used and the they expre, The most used shall, n, will, would, used (to), need, dare and (to)., Example, I can play the piano., . Loud noise can e, Meaning, damage one's, can, ability, possibility, informal request, • Can I come in?, giving permission, impossibility, past equivalent of can, • It can't be true., the, Exact, • Mrinal said, 'I can give you, could, number., number., polite request, indicating past ability, .Could you pass me the glass, please?, . We could climb ten flights of stairs wh, we were younger., • That call couldn't have come from, present impossibility, mother., huy, May I sit here?, • You may take this chair., • The fuse may have burnt out., may, polite request, formal, permission, present possibility, express a wish, might past equivalent of may, May you always see success!, • Ravi said, 'I may go to my grandmother's, house.', Ravi said that he might go to his, grandmother's house., • We might not come tomorrow., •Might I borrow your book?, weak possibility, seeking permission, (hesitation), must, necessity, logical certainty, prohibition or obligation, You must see a doctor today., You must not talk loudly inside the libran