should overstay
Regular verb: overstay - overstayed- overstayed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd overstay
you'd overstay
he'd overstay
we'd overstay
you'd overstay
they'd overstay 	I'd be overstaying
you'd be overstaying
he'd be overstaying
we'd be overstaying
you'd be overstaying
they'd be overstaying	I should've overstayed
you should've overstayed
he should've overstayed
we should've overstayed
you should've overstayed
they should've overstayed	I should've been overstaying
you should've been overstaying
he should've been overstaying
we should've been overstaying
you should've been overstaying
they should've been overstaying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't overstay
you shouldn't overstay
he shouldn't overstay
we shouldn't overstay
you shouldn't overstay
they shouldn't overstay 	I shouldn't be overstaying
you shouldn't be overstaying
he shouldn't be overstaying
we shouldn't be overstaying
you shouldn't be overstaying
they shouldn't be overstaying	I shouldn't have overstayed
you shouldn't have overstayed
he shouldn't have overstayed
we shouldn't have overstayed
you shouldn't have overstayed
they shouldn't have overstayed	I shouldn't have been overstaying
you shouldn't have been overstaying
he shouldn't have been overstaying
we shouldn't have been overstaying
you shouldn't have been overstaying
they shouldn't have been overstaying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I overstay?
should you overstay?
should he overstay?
should we overstay?
should you overstay?
should they overstay? 	should I be overstaying?
should you be overstaying?
should he be overstaying?
should we be overstaying?
should you be overstaying?
should they be overstaying? 	should I have overstayed?
should you have overstayed?
should he have overstayed?
should we have overstayed?
should you have overstayed?
should they have overstayed? 	should I have been overstaying?
should you have been overstaying?
should he have been overstaying?
should we have been overstaying?
should you have been overstaying?
should they have been overstaying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I overstay?
shouldn't you overstay?
shouldn't he overstay?
shouldn't we overstay?
shouldn't you overstay?
shouldn't they overstay? 	shouldn't I be overstaying?
shouldn't you be overstaying?
shouldn't he be overstaying?
shouldn't we be overstaying?
shouldn't you be overstaying?
shouldn't they be overstaying? 	shouldn't I have overstayed?
shouldn't you have overstayed?
shouldn't he have overstayed?
shouldn't we have overstayed?
shouldn't you have overstayed?
shouldn't they have overstayed? 	shouldn't I have been overstaying?
shouldn't you have been overstaying?
shouldn't he have been overstaying?
shouldn't we have been overstaying?
shouldn't you have been overstaying?
shouldn't they have been overstaying?