could participate
Verbe régulier : participate - participated- participated
Traduction française : participer - prendre part 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could participate
you could participate
she could participate
we could participate
you could participate
they could participate 	I could be participating
you could be participating
she could be participating
we could be participating
you could be participating
they could be participating	I could have participated
you could have participated
she could have participated
we could have participated
you could have participated
they could have participated	I could have been participating
you could have been participating
she could have been participating
we could have been participating
you could have been participating
they could have been participating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not participate
you could not participate
she could not participate
we could not participate
you could not participate
they could not participate 	I could not be participating
you could not be participating
she could not be participating
we could not be participating
you could not be participating
they could not be participating	I could not have participated
you could not have participated
she could not have participated
we could not have participated
you could not have participated
they could not have participated	I could not have been participating
you could not have been participating
she could not have been participating
we could not have been participating
you could not have been participating
they could not have been participating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I participate?
could you participate?
could she participate?
could we participate?
could you participate?
could they participate? 	could I be participating?
could you be participating?
could she be participating?
could we be participating?
could you be participating?
could they be participating? 	could I have participated?
could you have participated?
could she have participated?
could we have participated?
could you have participated?
could they have participated? 	could I have been participating?
could you have been participating?
could she have been participating?
could we have been participating?
could you have been participating?
could they have been participating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not participate?
could you not participate?
could she not participate?
could we not participate?
could you not participate?
could they not participate? 	could I not be participating?
could you not be participating?
could she not be participating?
could we not be participating?
could you not be participating?
could they not be participating? 	could I not have participated?
could you not have participated?
could she not have participated?
could we not have participated?
could you not have participated?
could they not have participated? 	could I not have been participating?
could you not have been participating?
could she not have been participating?
could we not have been participating?
could you not have been participating?
could they not have been participating?