could befriend
Regular verb: befriend - befriended- befriended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could befriend
you could befriend
she could befriend
we could befriend
you could befriend
they could befriend 	I could be befriending
you could be befriending
she could be befriending
we could be befriending
you could be befriending
they could be befriending	I could have befriended
you could have befriended
she could have befriended
we could have befriended
you could have befriended
they could have befriended	I could have been befriending
you could have been befriending
she could have been befriending
we could have been befriending
you could have been befriending
they could have been befriending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't befriend
you couldn't befriend
she couldn't befriend
we couldn't befriend
you couldn't befriend
they couldn't befriend 	I couldn't be befriending
you couldn't be befriending
she couldn't be befriending
we couldn't be befriending
you couldn't be befriending
they couldn't be befriending	I couldn't have befriended
you couldn't have befriended
she couldn't have befriended
we couldn't have befriended
you couldn't have befriended
they couldn't have befriended	I couldn't have been befriending
you couldn't have been befriending
she couldn't have been befriending
we couldn't have been befriending
you couldn't have been befriending
they couldn't have been befriending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I befriend?
could you befriend?
could she befriend?
could we befriend?
could you befriend?
could they befriend? 	could I be befriending?
could you be befriending?
could she be befriending?
could we be befriending?
could you be befriending?
could they be befriending? 	could I have befriended?
could you have befriended?
could she have befriended?
could we have befriended?
could you have befriended?
could they have befriended? 	could I have been befriending?
could you have been befriending?
could she have been befriending?
could we have been befriending?
could you have been befriending?
could they have been befriending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I befriend?
couldn't you befriend?
couldn't she befriend?
couldn't we befriend?
couldn't you befriend?
couldn't they befriend? 	couldn't I be befriending?
couldn't you be befriending?
couldn't she be befriending?
couldn't we be befriending?
couldn't you be befriending?
couldn't they be befriending? 	couldn't I have befriended?
couldn't you have befriended?
couldn't she have befriended?
couldn't we have befriended?
couldn't you have befriended?
couldn't they have befriended? 	couldn't I have been befriending?
couldn't you have been befriending?
couldn't she have been befriending?
couldn't we have been befriending?
couldn't you have been befriending?
couldn't they have been befriending?