could cower
Regular verb: cower - cowered- cowered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cower
you could cower
he could cower
we could cower
you could cower
they could cower 	I could be cowering
you could be cowering
he could be cowering
we could be cowering
you could be cowering
they could be cowering	I could have cowered
you could have cowered
he could have cowered
we could have cowered
you could have cowered
they could have cowered	I could have been cowering
you could have been cowering
he could have been cowering
we could have been cowering
you could have been cowering
they could have been cowering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not cower
you could not cower
he could not cower
we could not cower
you could not cower
they could not cower 	I could not be cowering
you could not be cowering
he could not be cowering
we could not be cowering
you could not be cowering
they could not be cowering	I could not have cowered
you could not have cowered
he could not have cowered
we could not have cowered
you could not have cowered
they could not have cowered	I could not have been cowering
you could not have been cowering
he could not have been cowering
we could not have been cowering
you could not have been cowering
they could not have been cowering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cower?
could you cower?
could he cower?
could we cower?
could you cower?
could they cower? 	could I be cowering?
could you be cowering?
could he be cowering?
could we be cowering?
could you be cowering?
could they be cowering? 	could I have cowered?
could you have cowered?
could he have cowered?
could we have cowered?
could you have cowered?
could they have cowered? 	could I have been cowering?
could you have been cowering?
could he have been cowering?
could we have been cowering?
could you have been cowering?
could they have been cowering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not cower?
could you not cower?
could he not cower?
could we not cower?
could you not cower?
could they not cower? 	could I not be cowering?
could you not be cowering?
could he not be cowering?
could we not be cowering?
could you not be cowering?
could they not be cowering? 	could I not have cowered?
could you not have cowered?
could he not have cowered?
could we not have cowered?
could you not have cowered?
could they not have cowered? 	could I not have been cowering?
could you not have been cowering?
could he not have been cowering?
could we not have been cowering?
could you not have been cowering?
could they not have been cowering?