can stair-step
Regular verb: stair-step - stair-steped- stair-steped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can stair-step
you can stair-step
he can stair-step
we can stair-step
you can stair-step
they can stair-step 	I can be stair-steping
you can be stair-steping
he can be stair-steping
we can be stair-steping
you can be stair-steping
they can be stair-steping	I can have stair-steped
you can have stair-steped
he can have stair-steped
we can have stair-steped
you can have stair-steped
they can have stair-steped	I can have been stair-steping
you can have been stair-steping
he can have been stair-steping
we can have been stair-steping
you can have been stair-steping
they can have been stair-steping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't stair-step
you can't stair-step
he can't stair-step
we can't stair-step
you can't stair-step
they can't stair-step 	I can't be stair-steping
you can't be stair-steping
he can't be stair-steping
we can't be stair-steping
you can't be stair-steping
they can't be stair-steping	I can't have stair-steped
you can't have stair-steped
he can't have stair-steped
we can't have stair-steped
you can't have stair-steped
they can't have stair-steped	I can't have been stair-steping
you can't have been stair-steping
he can't have been stair-steping
we can't have been stair-steping
you can't have been stair-steping
they can't have been stair-steping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I stair-step?
can you stair-step?
can he stair-step?
can we stair-step?
can you stair-step?
can they stair-step? 	can I be stair-steping?
can you be stair-steping?
can he be stair-steping?
can we be stair-steping?
can you be stair-steping?
can they be stair-steping? 	can I have stair-steped?
can you have stair-steped?
can he have stair-steped?
can we have stair-steped?
can you have stair-steped?
can they have stair-steped? 	can I have been stair-steping?
can you have been stair-steping?
can he have been stair-steping?
can we have been stair-steping?
can you have been stair-steping?
can they have been stair-steping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I stair-step?
can't you stair-step?
can't he stair-step?
can't we stair-step?
can't you stair-step?
can't they stair-step? 	can't I be stair-steping?
can't you be stair-steping?
can't he be stair-steping?
can't we be stair-steping?
can't you be stair-steping?
can't they be stair-steping? 	can't I have stair-steped?
can't you have stair-steped?
can't he have stair-steped?
can't we have stair-steped?
can't you have stair-steped?
can't they have stair-steped? 	can't I have been stair-steping?
can't you have been stair-steping?
can't he have been stair-steping?
can't we have been stair-steping?
can't you have been stair-steping?
can't they have been stair-steping?