Be-was,were-irregular
decide-decided-regular
have-had-irregular
get-got-irregular
knock-knocked-regular
answer-answered-regular
open-opened-regular
haer-heard-irregular
jump-jumped-regular
turn-turned-regular
see-saw-irregular
rush-rushed-regular
introduce-introduced-regular
shout-shouted-regular
walk-walked-regular
give-gave-irregular
die-died-irregular
say-said-irregular