English verb conjugation
CAN BENCH

Regular verb: bench - benched - benched

Affirmation

Simple form	V-ing form
I can bench you can bench he can bench we can bench you can bench they can bench	I can be benching you can be benching he 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 he 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 he 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 can't bench you can't bench he can't bench we can't bench you can't bench they can't bench	I can't be benching you can't be benching he can't be benching we can't be benching you can't be benching they can't be benching
Perfect	V-ing perfect
I can't have benched you can't have benched he can't have benched we can't have benched you can't have benched they can't have benched	I can't have been benching you can't have been benching he can't have been benching we can't have been benching you can't have been benching they can't have been benching

Interrogative form

Simple form	V-ing form
can I bench? can you bench? can he bench? can we bench? can you bench? can they bench?	can I be benching? can you be benching? can he 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 he 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 he 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't I bench? can't you bench? can't he bench? can't we bench? can't you bench? can't they bench?	can't I be benching? can't you be benching? can't he be benching? can't we be benching? can't you be benching? can't they be benching?
Perfect	V-ing perfect
can't I have benched? can't you have benched? can't he have benched? can't we have benched? can't you have benched? can't they have benched?	can't I have been benching? can't you have been benching? can't he have been benching? can't we have been benching? can't you have been benching? can't they have been benching?