List of English auxiliary verbs

This is a list of English auxiliary verbs, i.e. helping verbs, which include Modal verbs and Semi-modal verbs. See also auxiliary verbs, light verbs, and catenative verbs.

Primary Auxiliary Verbs

be

do

have

Single Word Modal Auxiliary Verbs

best better can could dare

may might must need ought

shall should will would

Two Word Semi-Modal Auxiliary Verb Phrases

be to dare to got to (gotta) have to

had best had better need to

ought to (oughta) would rather used to

Three Word Semi-Modal Auxiliary Verb Phrases

be able to be about to be allowed to be bound to be forced to

be free to be going to (be gonna) be likely to be obliged to be required to

be supposed to be unlikely to be used to get used to have got to