English verb conjugation
CAN FINISH

Regular verb: finish - finished - finished

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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