could blinker
Regular verb: blinker - blinkered- blinkered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could blinker
you could blinker
she could blinker
we could blinker
you could blinker
they could blinker 	I could be blinkering
you could be blinkering
she could be blinkering
we could be blinkering
you could be blinkering
they could be blinkering	I could have blinkered
you could have blinkered
she could have blinkered
we could have blinkered
you could have blinkered
they could have blinkered	I could have been blinkering
you could have been blinkering
she could have been blinkering
we could have been blinkering
you could have been blinkering
they could have been blinkering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not blinker
you could not blinker
she could not blinker
we could not blinker
you could not blinker
they could not blinker 	I could not be blinkering
you could not be blinkering
she could not be blinkering
we could not be blinkering
you could not be blinkering
they could not be blinkering	I could not have blinkered
you could not have blinkered
she could not have blinkered
we could not have blinkered
you could not have blinkered
they could not have blinkered	I could not have been blinkering
you could not have been blinkering
she could not have been blinkering
we could not have been blinkering
you could not have been blinkering
they could not have been blinkering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I blinker?
could you blinker?
could she blinker?
could we blinker?
could you blinker?
could they blinker? 	could I be blinkering?
could you be blinkering?
could she be blinkering?
could we be blinkering?
could you be blinkering?
could they be blinkering? 	could I have blinkered?
could you have blinkered?
could she have blinkered?
could we have blinkered?
could you have blinkered?
could they have blinkered? 	could I have been blinkering?
could you have been blinkering?
could she have been blinkering?
could we have been blinkering?
could you have been blinkering?
could they have been blinkering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not blinker?
could you not blinker?
could she not blinker?
could we not blinker?
could you not blinker?
could they not blinker? 	could I not be blinkering?
could you not be blinkering?
could she not be blinkering?
could we not be blinkering?
could you not be blinkering?
could they not be blinkering? 	could I not have blinkered?
could you not have blinkered?
could she not have blinkered?
could we not have blinkered?
could you not have blinkered?
could they not have blinkered? 	could I not have been blinkering?
could you not have been blinkering?
could she not have been blinkering?
could we not have been blinkering?
could you not have been blinkering?
could they not have been blinkering?