could finish
Regular verb: finish - finished- finished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could finish
you could finish
she could finish
we could finish
you could finish
they could finish 	I could be finishing
you could be finishing
she could be finishing
we could be finishing
you could be finishing
they could be finishing	I could have finished
you could have finished
she could have finished
we could have finished
you could have finished
they could have finished	I could have been finishing
you could have been finishing
she could have been finishing
we could have been finishing
you could have been finishing
they could have been finishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not finish
you could not finish
she could not finish
we could not finish
you could not finish
they could not finish 	I could not be finishing
you could not be finishing
she could not be finishing
we could not be finishing
you could not be finishing
they could not be finishing	I could not have finished
you could not have finished
she could not have finished
we could not have finished
you could not have finished
they could not have finished	I could not have been finishing
you could not have been finishing
she could not have been finishing
we could not have been finishing
you could not have been finishing
they could not have been finishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I finish?
could you finish?
could she finish?
could we finish?
could you finish?
could they finish? 	could I be finishing?
could you be finishing?
could she be finishing?
could we be finishing?
could you be finishing?
could they be finishing? 	could I have finished?
could you have finished?
could she have finished?
could we have finished?
could you have finished?
could they have finished? 	could I have been finishing?
could you have been finishing?
could she have been finishing?
could we have been finishing?
could you have been finishing?
could they have been finishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not finish?
could you not finish?
could she not finish?
could we not finish?
could you not finish?
could they not finish? 	could I not be finishing?
could you not be finishing?
could she not be finishing?
could we not be finishing?
could you not be finishing?
could they not be finishing? 	could I not have finished?
could you not have finished?
could she not have finished?
could we not have finished?
could you not have finished?
could they not have finished? 	could I not have been finishing?
could you not have been finishing?
could she not have been finishing?
could we not have been finishing?
could you not have been finishing?
could they not have been finishing?