could fillip
Regular verb: fillip - filliped- filliped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could fillip
you could fillip
he could fillip
we could fillip
you could fillip
they could fillip 	I could be filliping
you could be filliping
he could be filliping
we could be filliping
you could be filliping
they could be filliping	I could have filliped
you could have filliped
he could have filliped
we could have filliped
you could have filliped
they could have filliped	I could have been filliping
you could have been filliping
he could have been filliping
we could have been filliping
you could have been filliping
they could have been filliping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not fillip
you could not fillip
he could not fillip
we could not fillip
you could not fillip
they could not fillip 	I could not be filliping
you could not be filliping
he could not be filliping
we could not be filliping
you could not be filliping
they could not be filliping	I could not have filliped
you could not have filliped
he could not have filliped
we could not have filliped
you could not have filliped
they could not have filliped	I could not have been filliping
you could not have been filliping
he could not have been filliping
we could not have been filliping
you could not have been filliping
they could not have been filliping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I fillip?
could you fillip?
could he fillip?
could we fillip?
could you fillip?
could they fillip? 	could I be filliping?
could you be filliping?
could he be filliping?
could we be filliping?
could you be filliping?
could they be filliping? 	could I have filliped?
could you have filliped?
could he have filliped?
could we have filliped?
could you have filliped?
could they have filliped? 	could I have been filliping?
could you have been filliping?
could he have been filliping?
could we have been filliping?
could you have been filliping?
could they have been filliping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not fillip?
could you not fillip?
could he not fillip?
could we not fillip?
could you not fillip?
could they not fillip? 	could I not be filliping?
could you not be filliping?
could he not be filliping?
could we not be filliping?
could you not be filliping?
could they not be filliping? 	could I not have filliped?
could you not have filliped?
could he not have filliped?
could we not have filliped?
could you not have filliped?
could they not have filliped? 	could I not have been filliping?
could you not have been filliping?
could he not have been filliping?
could we not have been filliping?
could you not have been filliping?
could they not have been filliping?