could flick
Regular verb: flick - flicked- flicked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could flick
you could flick
she could flick
we could flick
you could flick
they could flick 	I could be flicking
you could be flicking
she could be flicking
we could be flicking
you could be flicking
they could be flicking	I could have flicked
you could have flicked
she could have flicked
we could have flicked
you could have flicked
they could have flicked	I could have been flicking
you could have been flicking
she could have been flicking
we could have been flicking
you could have been flicking
they could have been flicking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not flick
you could not flick
she could not flick
we could not flick
you could not flick
they could not flick 	I could not be flicking
you could not be flicking
she could not be flicking
we could not be flicking
you could not be flicking
they could not be flicking	I could not have flicked
you could not have flicked
she could not have flicked
we could not have flicked
you could not have flicked
they could not have flicked	I could not have been flicking
you could not have been flicking
she could not have been flicking
we could not have been flicking
you could not have been flicking
they could not have been flicking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I flick?
could you flick?
could she flick?
could we flick?
could you flick?
could they flick? 	could I be flicking?
could you be flicking?
could she be flicking?
could we be flicking?
could you be flicking?
could they be flicking? 	could I have flicked?
could you have flicked?
could she have flicked?
could we have flicked?
could you have flicked?
could they have flicked? 	could I have been flicking?
could you have been flicking?
could she have been flicking?
could we have been flicking?
could you have been flicking?
could they have been flicking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not flick?
could you not flick?
could she not flick?
could we not flick?
could you not flick?
could they not flick? 	could I not be flicking?
could you not be flicking?
could she not be flicking?
could we not be flicking?
could you not be flicking?
could they not be flicking? 	could I not have flicked?
could you not have flicked?
could she not have flicked?
could we not have flicked?
could you not have flicked?
could they not have flicked? 	could I not have been flicking?
could you not have been flicking?
could she not have been flicking?
could we not have been flicking?
could you not have been flicking?
could they not have been flicking?