could steamroll
Regular verb: steamroll - steamrolled- steamrolled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could steamroll
you could steamroll
she could steamroll
we could steamroll
you could steamroll
they could steamroll 	I could be steamrolling
you could be steamrolling
she could be steamrolling
we could be steamrolling
you could be steamrolling
they could be steamrolling	I could have steamrolled
you could have steamrolled
she could have steamrolled
we could have steamrolled
you could have steamrolled
they could have steamrolled	I could have been steamrolling
you could have been steamrolling
she could have been steamrolling
we could have been steamrolling
you could have been steamrolling
they could have been steamrolling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't steamroll
you couldn't steamroll
she couldn't steamroll
we couldn't steamroll
you couldn't steamroll
they couldn't steamroll 	I couldn't be steamrolling
you couldn't be steamrolling
she couldn't be steamrolling
we couldn't be steamrolling
you couldn't be steamrolling
they couldn't be steamrolling	I couldn't have steamrolled
you couldn't have steamrolled
she couldn't have steamrolled
we couldn't have steamrolled
you couldn't have steamrolled
they couldn't have steamrolled	I couldn't have been steamrolling
you couldn't have been steamrolling
she couldn't have been steamrolling
we couldn't have been steamrolling
you couldn't have been steamrolling
they couldn't have been steamrolling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I steamroll?
could you steamroll?
could she steamroll?
could we steamroll?
could you steamroll?
could they steamroll? 	could I be steamrolling?
could you be steamrolling?
could she be steamrolling?
could we be steamrolling?
could you be steamrolling?
could they be steamrolling? 	could I have steamrolled?
could you have steamrolled?
could she have steamrolled?
could we have steamrolled?
could you have steamrolled?
could they have steamrolled? 	could I have been steamrolling?
could you have been steamrolling?
could she have been steamrolling?
could we have been steamrolling?
could you have been steamrolling?
could they have been steamrolling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I steamroll?
couldn't you steamroll?
couldn't she steamroll?
couldn't we steamroll?
couldn't you steamroll?
couldn't they steamroll? 	couldn't I be steamrolling?
couldn't you be steamrolling?
couldn't she be steamrolling?
couldn't we be steamrolling?
couldn't you be steamrolling?
couldn't they be steamrolling? 	couldn't I have steamrolled?
couldn't you have steamrolled?
couldn't she have steamrolled?
couldn't we have steamrolled?
couldn't you have steamrolled?
couldn't they have steamrolled? 	couldn't I have been steamrolling?
couldn't you have been steamrolling?
couldn't she have been steamrolling?
couldn't we have been steamrolling?
couldn't you have been steamrolling?
couldn't they have been steamrolling?