could bump-start
Regular verb: bump-start - bump-started- bump-started

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bump-start
you could bump-start
he could bump-start
we could bump-start
you could bump-start
they could bump-start 	I could be bump-starting
you could be bump-starting
he could be bump-starting
we could be bump-starting
you could be bump-starting
they could be bump-starting	I could have bump-started
you could have bump-started
he could have bump-started
we could have bump-started
you could have bump-started
they could have bump-started	I could have been bump-starting
you could have been bump-starting
he could have been bump-starting
we could have been bump-starting
you could have been bump-starting
they could have been bump-starting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bump-start
you couldn't bump-start
he couldn't bump-start
we couldn't bump-start
you couldn't bump-start
they couldn't bump-start 	I couldn't be bump-starting
you couldn't be bump-starting
he couldn't be bump-starting
we couldn't be bump-starting
you couldn't be bump-starting
they couldn't be bump-starting	I couldn't have bump-started
you couldn't have bump-started
he couldn't have bump-started
we couldn't have bump-started
you couldn't have bump-started
they couldn't have bump-started	I couldn't have been bump-starting
you couldn't have been bump-starting
he couldn't have been bump-starting
we couldn't have been bump-starting
you couldn't have been bump-starting
they couldn't have been bump-starting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bump-start?
could you bump-start?
could he bump-start?
could we bump-start?
could you bump-start?
could they bump-start? 	could I be bump-starting?
could you be bump-starting?
could he be bump-starting?
could we be bump-starting?
could you be bump-starting?
could they be bump-starting? 	could I have bump-started?
could you have bump-started?
could he have bump-started?
could we have bump-started?
could you have bump-started?
could they have bump-started? 	could I have been bump-starting?
could you have been bump-starting?
could he have been bump-starting?
could we have been bump-starting?
could you have been bump-starting?
could they have been bump-starting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bump-start?
couldn't you bump-start?
couldn't he bump-start?
couldn't we bump-start?
couldn't you bump-start?
couldn't they bump-start? 	couldn't I be bump-starting?
couldn't you be bump-starting?
couldn't he be bump-starting?
couldn't we be bump-starting?
couldn't you be bump-starting?
couldn't they be bump-starting? 	couldn't I have bump-started?
couldn't you have bump-started?
couldn't he have bump-started?
couldn't we have bump-started?
couldn't you have bump-started?
couldn't they have bump-started? 	couldn't I have been bump-starting?
couldn't you have been bump-starting?
couldn't he have been bump-starting?
couldn't we have been bump-starting?
couldn't you have been bump-starting?
couldn't they have been bump-starting?