could skin-pop
Regular verb: skin-pop - skin-poped- skin-poped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could skin-pop
you could skin-pop
he could skin-pop
we could skin-pop
you could skin-pop
they could skin-pop 	I could be skin-poping
you could be skin-poping
he could be skin-poping
we could be skin-poping
you could be skin-poping
they could be skin-poping	I could have skin-poped
you could have skin-poped
he could have skin-poped
we could have skin-poped
you could have skin-poped
they could have skin-poped	I could have been skin-poping
you could have been skin-poping
he could have been skin-poping
we could have been skin-poping
you could have been skin-poping
they could have been skin-poping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't skin-pop
you couldn't skin-pop
he couldn't skin-pop
we couldn't skin-pop
you couldn't skin-pop
they couldn't skin-pop 	I couldn't be skin-poping
you couldn't be skin-poping
he couldn't be skin-poping
we couldn't be skin-poping
you couldn't be skin-poping
they couldn't be skin-poping	I couldn't have skin-poped
you couldn't have skin-poped
he couldn't have skin-poped
we couldn't have skin-poped
you couldn't have skin-poped
they couldn't have skin-poped	I couldn't have been skin-poping
you couldn't have been skin-poping
he couldn't have been skin-poping
we couldn't have been skin-poping
you couldn't have been skin-poping
they couldn't have been skin-poping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I skin-pop?
could you skin-pop?
could he skin-pop?
could we skin-pop?
could you skin-pop?
could they skin-pop? 	could I be skin-poping?
could you be skin-poping?
could he be skin-poping?
could we be skin-poping?
could you be skin-poping?
could they be skin-poping? 	could I have skin-poped?
could you have skin-poped?
could he have skin-poped?
could we have skin-poped?
could you have skin-poped?
could they have skin-poped? 	could I have been skin-poping?
could you have been skin-poping?
could he have been skin-poping?
could we have been skin-poping?
could you have been skin-poping?
could they have been skin-poping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I skin-pop?
couldn't you skin-pop?
couldn't he skin-pop?
couldn't we skin-pop?
couldn't you skin-pop?
couldn't they skin-pop? 	couldn't I be skin-poping?
couldn't you be skin-poping?
couldn't he be skin-poping?
couldn't we be skin-poping?
couldn't you be skin-poping?
couldn't they be skin-poping? 	couldn't I have skin-poped?
couldn't you have skin-poped?
couldn't he have skin-poped?
couldn't we have skin-poped?
couldn't you have skin-poped?
couldn't they have skin-poped? 	couldn't I have been skin-poping?
couldn't you have been skin-poping?
couldn't he have been skin-poping?
couldn't we have been skin-poping?
couldn't you have been skin-poping?
couldn't they have been skin-poping?