Past tense

PresentPresent ParticiplePastPast Participle
come(is) comingcame(have) come
fall(is) fallingfell(have) fallen
go(is) goingwent(have) gone
graduate(is) graduatinggraduated(have) graduated
know(is) knowingknew(have) known
walk(is) walkingwalk(have) walked
write(is) writingwrote(have) written