auxiliary verb কয়টি ও কি কি?

উত্তর(১):- চার ধরনের auxilary verb আছে। যথাঃ Verb to do (do, does, did), verb to be ( am, is, are, was, were) verb to have (have, has, had), Modal auxilaries (can, could, shall, should, may, might, will, would, have to, had to, must, need to, ought to)

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