Present perfect
verb to be in present
Simple present
Future
past perfect
Posibility
Simple past
Have, has. haven't / hasn't (past)
Might/may
Will/Won't (in negative)
did, didn't (negative)
do, does don't/ doesn't (verbs in present, in 3er person)
Is, are, am ins't/aren't/am not (negative)
had, hadn't (negative)