am; is; are; was; were; been; being

have; has; had; had; having

do; does; did; done; doing

go; goes; went; gone; going

say; says; said; said; saying

get; gets; got; gotten got; getting

make; makes; made; made; making

know; knows; knew; known; knowing

think; thinks; thought; thought; thinking

take; takes; took; taken; taking

see; sees; saw; seen; seeing

come; comes; came; come; coming

want; wants; wanted; wanted; wanting

use; uses; used; used; using

find; finds; found; found; finding

give; gives; gave; given; giving

tell; tells; told; told; telling

become; becomes; became; become; becoming

show; shows; showed; shown; showing

leave; leaves; left; left; leaving