can suffice
Regular verb: suffice - sufficed- sufficed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can suffice
you can suffice
she can suffice
we can suffice
you can suffice
they can suffice 	I can be sufficing
you can be sufficing
she can be sufficing
we can be sufficing
you can be sufficing
they can be sufficing	I can have sufficed
you can have sufficed
she can have sufficed
we can have sufficed
you can have sufficed
they can have sufficed	I can have been sufficing
you can have been sufficing
she can have been sufficing
we can have been sufficing
you can have been sufficing
they can have been sufficing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't suffice
you can't suffice
she can't suffice
we can't suffice
you can't suffice
they can't suffice 	I can't be sufficing
you can't be sufficing
she can't be sufficing
we can't be sufficing
you can't be sufficing
they can't be sufficing	I can't have sufficed
you can't have sufficed
she can't have sufficed
we can't have sufficed
you can't have sufficed
they can't have sufficed	I can't have been sufficing
you can't have been sufficing
she can't have been sufficing
we can't have been sufficing
you can't have been sufficing
they can't have been sufficing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I suffice?
can you suffice?
can she suffice?
can we suffice?
can you suffice?
can they suffice? 	can I be sufficing?
can you be sufficing?
can she be sufficing?
can we be sufficing?
can you be sufficing?
can they be sufficing? 	can I have sufficed?
can you have sufficed?
can she have sufficed?
can we have sufficed?
can you have sufficed?
can they have sufficed? 	can I have been sufficing?
can you have been sufficing?
can she have been sufficing?
can we have been sufficing?
can you have been sufficing?
can they have been sufficing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I suffice?
can't you suffice?
can't she suffice?
can't we suffice?
can't you suffice?
can't they suffice? 	can't I be sufficing?
can't you be sufficing?
can't she be sufficing?
can't we be sufficing?
can't you be sufficing?
can't they be sufficing? 	can't I have sufficed?
can't you have sufficed?
can't she have sufficed?
can't we have sufficed?
can't you have sufficed?
can't they have sufficed? 	can't I have been sufficing?
can't you have been sufficing?
can't she have been sufficing?
can't we have been sufficing?
can't you have been sufficing?
can't they have been sufficing?