Напишите основные фирмы следующих глаголов: be, have,go, give, lake, bong, understand, lit, stand, speak, say, tell, talk, see, bear. look, listen.

Be -was/were-been
have-had-had
go-went-gone
give-gave-given
bong-???
understand-understood-understood
stand-stood-stood
speak-spoke-spoken
say-said-said
tell-told-told
talk-talked-talked
see-saw-seen
bear-bore-born
look-looked-looked
listen-listened-listened