to know
knew, he has known
to fall
fell - it has fallen
to leave
left - they have left
to keep
kept - she has kept
to hit
hit - she has hit
to give
gave - she has given
to grow
grew - they have grown
to learn
learnt - he has learnt
to fight
fought - he has fought
to have
had - I have had an idea
to fly
flew - it has flown
to get
got - she has got
to hear
heard - she has heard
to hurt
hurt - she has hurt herself
to find
found - I have found
to go
went - he has gone away
to hide
hid - he has hidden
to feel
felt - he has felt