could cover
Regular verb: cover - covered- covered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cover
you could cover
she could cover
we could cover
you could cover
they could cover 	I could be covering
you could be covering
she could be covering
we could be covering
you could be covering
they could be covering	I could have covered
you could have covered
she could have covered
we could have covered
you could have covered
they could have covered	I could have been covering
you could have been covering
she could have been covering
we could have been covering
you could have been covering
they could have been covering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not cover
you could not cover
she could not cover
we could not cover
you could not cover
they could not cover 	I could not be covering
you could not be covering
she could not be covering
we could not be covering
you could not be covering
they could not be covering	I could not have covered
you could not have covered
she could not have covered
we could not have covered
you could not have covered
they could not have covered	I could not have been covering
you could not have been covering
she could not have been covering
we could not have been covering
you could not have been covering
they could not have been covering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cover?
could you cover?
could she cover?
could we cover?
could you cover?
could they cover? 	could I be covering?
could you be covering?
could she be covering?
could we be covering?
could you be covering?
could they be covering? 	could I have covered?
could you have covered?
could she have covered?
could we have covered?
could you have covered?
could they have covered? 	could I have been covering?
could you have been covering?
could she have been covering?
could we have been covering?
could you have been covering?
could they have been covering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not cover?
could you not cover?
could she not cover?
could we not cover?
could you not cover?
could they not cover? 	could I not be covering?
could you not be covering?
could she not be covering?
could we not be covering?
could you not be covering?
could they not be covering? 	could I not have covered?
could you not have covered?
could she not have covered?
could we not have covered?
could you not have covered?
could they not have covered? 	could I not have been covering?
could you not have been covering?
could she not have been covering?
could we not have been covering?
could you not have been covering?
could they not have been covering?