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情態助動詞 shall 與 should
情態助動詞會置於原形動詞前,且具有功能性,用來表示許可、能力、可能性……等不同的語氣或態度。下列為常見的情態助動詞:
情態助動詞 |
否定形 |
縮寫形 |
shall should |
shall not should not |
shan’t(少用) shouldn’t |
will would |
will not would not |
won’t wouldn’t |
can could |
cannot / can not(特殊句構或文學) could not |
can’t couldn’t |
may might |
may not might not |
mayn’t(少用) mightn’t(少用) |
must |
must not |
mustn’t |
need |
need not |
needn’t |
dare |
dare not |
daren’t(少用) |