English verb conjugation
CAN BENCH

Regular verb: bench - benched - benched

Affirmation

Simple form	V-ing form
I can bench you can bench she can bench we can bench you can bench they can bench	I can be benching you can be benching she can be benching we can be benching you can be benching they can be benching
Perfect	V-ing perfect
I can have benched you can have benched she can have benched we can have benched you can have benched they can have benched	I can have been benching you can have been benching she can have been benching we can have been benching you can have been benching they can have been benching

Negation

Simple form	V-ing form
I cannot bench you cannot bench she cannot bench we cannot bench you cannot bench they cannot bench	I cannot be benching you cannot be benching she cannot be benching we cannot be benching you cannot be benching they cannot be benching
Perfect	V-ing perfect
I cannot have benched you cannot have benched she cannot have benched we cannot have benched you cannot have benched they cannot have benched	I cannot have been benching you cannot have been benching she cannot have been benching we cannot have been benching you cannot have been benching they cannot have been benching

Interrogative form

Simple form	V-ing form
can I bench? can you bench? can she bench? can we bench? can you bench? can they bench?	can I be benching? can you be benching? can she be benching? can we be benching? can you be benching? can they be benching?
Perfect	V-ing perfect
can I have benched? can you have benched? can she have benched? can we have benched? can you have benched? can they have benched?	can I have been benching? can you have been benching? can she have been benching? can we have been benching? can you have been benching? can they have been benching?

Interro-negative form

Simple form	V-ing form
can I not bench? can you not bench? can she not bench? can we not bench? can you not bench? can they not bench?	can I not be benching? can you not be benching? can she not be benching? can we not be benching? can you not be benching? can they not be benching?
Perfect	V-ing perfect
can I not have benched? can you not have benched? can she not have benched? can we not have benched? can you not have benched? can they not have benched?	can I not have been benching? can you not have been benching? can she not have been benching? can we not have been benching? can you not have been benching? can they not have been benching?