could skateboard
Verbe régulier : skateboard - skateboarded- skateboarded
Traduction française : faire du skateboard ou de la planche à roulettes 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could skateboard
you could skateboard
she could skateboard
we could skateboard
you could skateboard
they could skateboard 	I could be skateboarding
you could be skateboarding
she could be skateboarding
we could be skateboarding
you could be skateboarding
they could be skateboarding	I could have skateboarded
you could have skateboarded
she could have skateboarded
we could have skateboarded
you could have skateboarded
they could have skateboarded	I could have been skateboarding
you could have been skateboarding
she could have been skateboarding
we could have been skateboarding
you could have been skateboarding
they could have been skateboarding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not skateboard
you could not skateboard
she could not skateboard
we could not skateboard
you could not skateboard
they could not skateboard 	I could not be skateboarding
you could not be skateboarding
she could not be skateboarding
we could not be skateboarding
you could not be skateboarding
they could not be skateboarding	I could not have skateboarded
you could not have skateboarded
she could not have skateboarded
we could not have skateboarded
you could not have skateboarded
they could not have skateboarded	I could not have been skateboarding
you could not have been skateboarding
she could not have been skateboarding
we could not have been skateboarding
you could not have been skateboarding
they could not have been skateboarding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I skateboard?
could you skateboard?
could she skateboard?
could we skateboard?
could you skateboard?
could they skateboard? 	could I be skateboarding?
could you be skateboarding?
could she be skateboarding?
could we be skateboarding?
could you be skateboarding?
could they be skateboarding? 	could I have skateboarded?
could you have skateboarded?
could she have skateboarded?
could we have skateboarded?
could you have skateboarded?
could they have skateboarded? 	could I have been skateboarding?
could you have been skateboarding?
could she have been skateboarding?
could we have been skateboarding?
could you have been skateboarding?
could they have been skateboarding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not skateboard?
could you not skateboard?
could she not skateboard?
could we not skateboard?
could you not skateboard?
could they not skateboard? 	could I not be skateboarding?
could you not be skateboarding?
could she not be skateboarding?
could we not be skateboarding?
could you not be skateboarding?
could they not be skateboarding? 	could I not have skateboarded?
could you not have skateboarded?
could she not have skateboarded?
could we not have skateboarded?
could you not have skateboarded?
could they not have skateboarded? 	could I not have been skateboarding?
could you not have been skateboarding?
could she not have been skateboarding?
could we not have been skateboarding?
could you not have been skateboarding?
could they not have been skateboarding?