English verb conjugation
CAN STEP

Regular verb: step - stepped - stepped

Affirmation

Simple form	V-ing form
I can step you can step he can step we can step you can step they can step	I can be stepping you can be stepping he can be stepping we can be stepping you can be stepping they can be stepping
Perfect	V-ing perfect
I can have stepped you can have stepped he can have stepped we can have stepped you can have stepped they can have stepped	I can have been stepping you can have been stepping he can have been stepping we can have been stepping you can have been stepping they can have been stepping

Negation

Simple form	V-ing form
I can't step you can't step he can't step we can't step you can't step they can't step	I can't be stepping you can't be stepping he can't be stepping we can't be stepping you can't be stepping they can't be stepping
Perfect	V-ing perfect
I can't have stepped you can't have stepped he can't have stepped we can't have stepped you can't have stepped they can't have stepped	I can't have been stepping you can't have been stepping he can't have been stepping we can't have been stepping you can't have been stepping they can't have been stepping

Interrogative form

Simple form	V-ing form
can I step? can you step? can he step? can we step? can you step? can they step?	can I be stepping? can you be stepping? can he be stepping? can we be stepping? can you be stepping? can they be stepping?
Perfect	V-ing perfect
can I have stepped? can you have stepped? can he have stepped? can we have stepped? can you have stepped? can they have stepped?	can I have been stepping? can you have been stepping? can he have been stepping? can we have been stepping? can you have been stepping? can they have been stepping?

Interro-negative form

Simple form	V-ing form
can't I step? can't you step? can't he step? can't we step? can't you step? can't they step?	can't I be stepping? can't you be stepping? can't he be stepping? can't we be stepping? can't you be stepping? can't they be stepping?
Perfect	V-ing perfect
can't I have stepped? can't you have stepped? can't he have stepped? can't we have stepped? can't you have stepped? can't they have stepped?	can't I have been stepping? can't you have been stepping? can't he have been stepping? can't we have been stepping? can't you have been stepping? can't they have been stepping?