could roller-skate
Verbe régulier : roller-skate - roller-skated- roller-skated
Traduction française : faire du patin à roulettes 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could roller-skate
you could roller-skate
she could roller-skate
we could roller-skate
you could roller-skate
they could roller-skate 	I could be roller-skating
you could be roller-skating
she could be roller-skating
we could be roller-skating
you could be roller-skating
they could be roller-skating	I could have roller-skated
you could have roller-skated
she could have roller-skated
we could have roller-skated
you could have roller-skated
they could have roller-skated	I could have been roller-skating
you could have been roller-skating
she could have been roller-skating
we could have been roller-skating
you could have been roller-skating
they could have been roller-skating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't roller-skate
you couldn't roller-skate
she couldn't roller-skate
we couldn't roller-skate
you couldn't roller-skate
they couldn't roller-skate 	I couldn't be roller-skating
you couldn't be roller-skating
she couldn't be roller-skating
we couldn't be roller-skating
you couldn't be roller-skating
they couldn't be roller-skating	I couldn't have roller-skated
you couldn't have roller-skated
she couldn't have roller-skated
we couldn't have roller-skated
you couldn't have roller-skated
they couldn't have roller-skated	I couldn't have been roller-skating
you couldn't have been roller-skating
she couldn't have been roller-skating
we couldn't have been roller-skating
you couldn't have been roller-skating
they couldn't have been roller-skating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I roller-skate?
could you roller-skate?
could she roller-skate?
could we roller-skate?
could you roller-skate?
could they roller-skate? 	could I be roller-skating?
could you be roller-skating?
could she be roller-skating?
could we be roller-skating?
could you be roller-skating?
could they be roller-skating? 	could I have roller-skated?
could you have roller-skated?
could she have roller-skated?
could we have roller-skated?
could you have roller-skated?
could they have roller-skated? 	could I have been roller-skating?
could you have been roller-skating?
could she have been roller-skating?
could we have been roller-skating?
could you have been roller-skating?
could they have been roller-skating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I roller-skate?
couldn't you roller-skate?
couldn't she roller-skate?
couldn't we roller-skate?
couldn't you roller-skate?
couldn't they roller-skate? 	couldn't I be roller-skating?
couldn't you be roller-skating?
couldn't she be roller-skating?
couldn't we be roller-skating?
couldn't you be roller-skating?
couldn't they be roller-skating? 	couldn't I have roller-skated?
couldn't you have roller-skated?
couldn't she have roller-skated?
couldn't we have roller-skated?
couldn't you have roller-skated?
couldn't they have roller-skated? 	couldn't I have been roller-skating?
couldn't you have been roller-skating?
couldn't she have been roller-skating?
couldn't we have been roller-skating?
couldn't you have been roller-skating?
couldn't they have been roller-skating?