can screen
Regular verb: screen - screened- screened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can screen
you can screen
she can screen
we can screen
you can screen
they can screen 	I can be screening
you can be screening
she can be screening
we can be screening
you can be screening
they can be screening	I can have screened
you can have screened
she can have screened
we can have screened
you can have screened
they can have screened	I can have been screening
you can have been screening
she can have been screening
we can have been screening
you can have been screening
they can have been screening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't screen
you can't screen
she can't screen
we can't screen
you can't screen
they can't screen 	I can't be screening
you can't be screening
she can't be screening
we can't be screening
you can't be screening
they can't be screening	I can't have screened
you can't have screened
she can't have screened
we can't have screened
you can't have screened
they can't have screened	I can't have been screening
you can't have been screening
she can't have been screening
we can't have been screening
you can't have been screening
they can't have been screening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I screen?
can you screen?
can she screen?
can we screen?
can you screen?
can they screen? 	can I be screening?
can you be screening?
can she be screening?
can we be screening?
can you be screening?
can they be screening? 	can I have screened?
can you have screened?
can she have screened?
can we have screened?
can you have screened?
can they have screened? 	can I have been screening?
can you have been screening?
can she have been screening?
can we have been screening?
can you have been screening?
can they have been screening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I screen?
can't you screen?
can't she screen?
can't we screen?
can't you screen?
can't they screen? 	can't I be screening?
can't you be screening?
can't she be screening?
can't we be screening?
can't you be screening?
can't they be screening? 	can't I have screened?
can't you have screened?
can't she have screened?
can't we have screened?
can't you have screened?
can't they have screened? 	can't I have been screening?
can't you have been screening?
can't she have been screening?
can't we have been screening?
can't you have been screening?
can't they have been screening?