English verb conjugation
CAN MARCH

Regular verb: march - marched - marched

Affirmation

Simple form	V-ing form
I can march you can march she can march we can march you can march they can march	I can be marching you can be marching she can be marching we can be marching you can be marching they can be marching
Perfect	V-ing perfect
I can have marched you can have marched she can have marched we can have marched you can have marched they can have marched	I can have been marching you can have been marching she can have been marching we can have been marching you can have been marching they can have been marching

Negation

Simple form	V-ing form
I can't march you can't march she can't march we can't march you can't march they can't march	I can't be marching you can't be marching she can't be marching we can't be marching you can't be marching they can't be marching
Perfect	V-ing perfect
I can't have marched you can't have marched she can't have marched we can't have marched you can't have marched they can't have marched	I can't have been marching you can't have been marching she can't have been marching we can't have been marching you can't have been marching they can't have been marching

Interrogative form

Simple form	V-ing form
can I march? can you march? can she march? can we march? can you march? can they march?	can I be marching? can you be marching? can she be marching? can we be marching? can you be marching? can they be marching?
Perfect	V-ing perfect
can I have marched? can you have marched? can she have marched? can we have marched? can you have marched? can they have marched?	can I have been marching? can you have been marching? can she have been marching? can we have been marching? can you have been marching? can they have been marching?

Interro-negative form

Simple form	V-ing form
can't I march? can't you march? can't she march? can't we march? can't you march? can't they march?	can't I be marching? can't you be marching? can't she be marching? can't we be marching? can't you be marching? can't they be marching?
Perfect	V-ing perfect
can't I have marched? can't you have marched? can't she have marched? can't we have marched? can't you have marched? can't they have marched?	can't I have been marching? can't you have been marching? can't she have been marching? can't we have been marching? can't you have been marching? can't they have been marching?