Present Perfect Tense

has study

have studied

have study

has studied

has eat

have eaten

has eaten

have eat

have gone

has went

have go

has go

has live

have lived

has lived

have live

have not go

have not gone

has not go

have not went

has not seen

have not see

has not see

have not seen

have not met

has not met

have not meet

has not meet

has not visit

have not visit

has not visited

have not visited

Have you help

Has you helped

Have you helped

see

seen

saw

sees

finished

finish

finishes

finishing

tell

told

telled

tolded