can overstay
Regular verb: overstay - overstayed- overstayed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can overstay
you can overstay
he can overstay
we can overstay
you can overstay
they can overstay 	I can be overstaying
you can be overstaying
he can be overstaying
we can be overstaying
you can be overstaying
they can be overstaying	I can have overstayed
you can have overstayed
he can have overstayed
we can have overstayed
you can have overstayed
they can have overstayed	I can have been overstaying
you can have been overstaying
he can have been overstaying
we can have been overstaying
you can have been overstaying
they can have been overstaying	

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

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

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