a verb that is used with another verb to show its tense, PERSON, MOOD etc. In English the auxiliary verbs are 'be', 'do', and 'have' (as in 'I am running', 'I didn't go', 'they have gone') and all the MODAL s
one of these verb forms: can, could, may, might, shall, should, will, would, must, ought to, used to, need, had better, and DARE . They are all used with other verbs to express ideas such as possibility, permission, or intention [↪ auxiliary verb]
a group of words that is used like a verb and consists of a verb with an adverb or PREPOSITION after it, for example 'set off' or 'look after'. In this dictionary, phrasal verbs are marked 'phr v'.