can occupy
Regular verb: occupy - occupied- occupied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can occupy
you can occupy
he can occupy
we can occupy
you can occupy
they can occupy 	I can be occupying
you can be occupying
he can be occupying
we can be occupying
you can be occupying
they can be occupying	I can have occupied
you can have occupied
he can have occupied
we can have occupied
you can have occupied
they can have occupied	I can have been occupying
you can have been occupying
he can have been occupying
we can have been occupying
you can have been occupying
they can have been occupying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't occupy
you can't occupy
he can't occupy
we can't occupy
you can't occupy
they can't occupy 	I can't be occupying
you can't be occupying
he can't be occupying
we can't be occupying
you can't be occupying
they can't be occupying	I can't have occupied
you can't have occupied
he can't have occupied
we can't have occupied
you can't have occupied
they can't have occupied	I can't have been occupying
you can't have been occupying
he can't have been occupying
we can't have been occupying
you can't have been occupying
they can't have been occupying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I occupy?
can you occupy?
can he occupy?
can we occupy?
can you occupy?
can they occupy? 	can I be occupying?
can you be occupying?
can he be occupying?
can we be occupying?
can you be occupying?
can they be occupying? 	can I have occupied?
can you have occupied?
can he have occupied?
can we have occupied?
can you have occupied?
can they have occupied? 	can I have been occupying?
can you have been occupying?
can he have been occupying?
can we have been occupying?
can you have been occupying?
can they have been occupying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I occupy?
can't you occupy?
can't he occupy?
can't we occupy?
can't you occupy?
can't they occupy? 	can't I be occupying?
can't you be occupying?
can't he be occupying?
can't we be occupying?
can't you be occupying?
can't they be occupying? 	can't I have occupied?
can't you have occupied?
can't he have occupied?
can't we have occupied?
can't you have occupied?
can't they have occupied? 	can't I have been occupying?
can't you have been occupying?
can't he have been occupying?
can't we have been occupying?
can't you have been occupying?
can't they have been occupying?