could whip
Regular verb: whip - whipped- whipped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could whip
you could whip
she could whip
we could whip
you could whip
they could whip 	I could be whipping
you could be whipping
she could be whipping
we could be whipping
you could be whipping
they could be whipping	I could have whipped
you could have whipped
she could have whipped
we could have whipped
you could have whipped
they could have whipped	I could have been whipping
you could have been whipping
she could have been whipping
we could have been whipping
you could have been whipping
they could have been whipping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not whip
you could not whip
she could not whip
we could not whip
you could not whip
they could not whip 	I could not be whipping
you could not be whipping
she could not be whipping
we could not be whipping
you could not be whipping
they could not be whipping	I could not have whipped
you could not have whipped
she could not have whipped
we could not have whipped
you could not have whipped
they could not have whipped	I could not have been whipping
you could not have been whipping
she could not have been whipping
we could not have been whipping
you could not have been whipping
they could not have been whipping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I whip?
could you whip?
could she whip?
could we whip?
could you whip?
could they whip? 	could I be whipping?
could you be whipping?
could she be whipping?
could we be whipping?
could you be whipping?
could they be whipping? 	could I have whipped?
could you have whipped?
could she have whipped?
could we have whipped?
could you have whipped?
could they have whipped? 	could I have been whipping?
could you have been whipping?
could she have been whipping?
could we have been whipping?
could you have been whipping?
could they have been whipping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not whip?
could you not whip?
could she not whip?
could we not whip?
could you not whip?
could they not whip? 	could I not be whipping?
could you not be whipping?
could she not be whipping?
could we not be whipping?
could you not be whipping?
could they not be whipping? 	could I not have whipped?
could you not have whipped?
could she not have whipped?
could we not have whipped?
could you not have whipped?
could they not have whipped? 	could I not have been whipping?
could you not have been whipping?
could she not have been whipping?
could we not have been whipping?
could you not have been whipping?
could they not have been whipping?