can step
Regular verb: step - stepped- stepped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I cannot step
you cannot step
he cannot step
we cannot step
you cannot step
they cannot step 	I cannot be stepping
you cannot be stepping
he cannot be stepping
we cannot be stepping
you cannot be stepping
they cannot be stepping	I cannot have stepped
you cannot have stepped
he cannot have stepped
we cannot have stepped
you cannot have stepped
they cannot have stepped	I cannot have been stepping
you cannot have been stepping
he cannot have been stepping
we cannot have been stepping
you cannot have been stepping
they cannot have been stepping	

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