can preoccupy
Regular verb: preoccupy - preoccupied- preoccupied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can preoccupy
you can preoccupy
he can preoccupy
we can preoccupy
you can preoccupy
they can preoccupy 	I can be preoccupying
you can be preoccupying
he can be preoccupying
we can be preoccupying
you can be preoccupying
they can be preoccupying	I can have preoccupied
you can have preoccupied
he can have preoccupied
we can have preoccupied
you can have preoccupied
they can have preoccupied	I can have been preoccupying
you can have been preoccupying
he can have been preoccupying
we can have been preoccupying
you can have been preoccupying
they can have been preoccupying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't preoccupy
you can't preoccupy
he can't preoccupy
we can't preoccupy
you can't preoccupy
they can't preoccupy 	I can't be preoccupying
you can't be preoccupying
he can't be preoccupying
we can't be preoccupying
you can't be preoccupying
they can't be preoccupying	I can't have preoccupied
you can't have preoccupied
he can't have preoccupied
we can't have preoccupied
you can't have preoccupied
they can't have preoccupied	I can't have been preoccupying
you can't have been preoccupying
he can't have been preoccupying
we can't have been preoccupying
you can't have been preoccupying
they can't have been preoccupying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I preoccupy?
can you preoccupy?
can he preoccupy?
can we preoccupy?
can you preoccupy?
can they preoccupy? 	can I be preoccupying?
can you be preoccupying?
can he be preoccupying?
can we be preoccupying?
can you be preoccupying?
can they be preoccupying? 	can I have preoccupied?
can you have preoccupied?
can he have preoccupied?
can we have preoccupied?
can you have preoccupied?
can they have preoccupied? 	can I have been preoccupying?
can you have been preoccupying?
can he have been preoccupying?
can we have been preoccupying?
can you have been preoccupying?
can they have been preoccupying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I preoccupy?
can't you preoccupy?
can't he preoccupy?
can't we preoccupy?
can't you preoccupy?
can't they preoccupy? 	can't I be preoccupying?
can't you be preoccupying?
can't he be preoccupying?
can't we be preoccupying?
can't you be preoccupying?
can't they be preoccupying? 	can't I have preoccupied?
can't you have preoccupied?
can't he have preoccupied?
can't we have preoccupied?
can't you have preoccupied?
can't they have preoccupied? 	can't I have been preoccupying?
can't you have been preoccupying?
can't he have been preoccupying?
can't we have been preoccupying?
can't you have been preoccupying?
can't they have been preoccupying?