can deafen
Regular verb: deafen - deafened- deafened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can deafen
you can deafen
he can deafen
we can deafen
you can deafen
they can deafen 	I can be deafening
you can be deafening
he can be deafening
we can be deafening
you can be deafening
they can be deafening	I can have deafened
you can have deafened
he can have deafened
we can have deafened
you can have deafened
they can have deafened	I can have been deafening
you can have been deafening
he can have been deafening
we can have been deafening
you can have been deafening
they can have been deafening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't deafen
you can't deafen
he can't deafen
we can't deafen
you can't deafen
they can't deafen 	I can't be deafening
you can't be deafening
he can't be deafening
we can't be deafening
you can't be deafening
they can't be deafening	I can't have deafened
you can't have deafened
he can't have deafened
we can't have deafened
you can't have deafened
they can't have deafened	I can't have been deafening
you can't have been deafening
he can't have been deafening
we can't have been deafening
you can't have been deafening
they can't have been deafening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I deafen?
can you deafen?
can he deafen?
can we deafen?
can you deafen?
can they deafen? 	can I be deafening?
can you be deafening?
can he be deafening?
can we be deafening?
can you be deafening?
can they be deafening? 	can I have deafened?
can you have deafened?
can he have deafened?
can we have deafened?
can you have deafened?
can they have deafened? 	can I have been deafening?
can you have been deafening?
can he have been deafening?
can we have been deafening?
can you have been deafening?
can they have been deafening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I deafen?
can't you deafen?
can't he deafen?
can't we deafen?
can't you deafen?
can't they deafen? 	can't I be deafening?
can't you be deafening?
can't he be deafening?
can't we be deafening?
can't you be deafening?
can't they be deafening? 	can't I have deafened?
can't you have deafened?
can't he have deafened?
can't we have deafened?
can't you have deafened?
can't they have deafened? 	can't I have been deafening?
can't you have been deafening?
can't he have been deafening?
can't we have been deafening?
can't you have been deafening?
can't they have been deafening?