Conjugaison du verbe anglais
COULD YO-YO

Verbe régulier : yo-yo - yo-yoed - yo-yoed

Affirmation

Forme simple	Forme en V-ing
I could yo-yo you could yo-yo he could yo-yo we could yo-yo you could yo-yo they could yo-yo	I could be yo-yoing you could be yo-yoing he could be yo-yoing we could be yo-yoing you could be yo-yoing they could be yo-yoing
Perfect	Perfect en V-ing
I could have yo-yoed you could have yo-yoed he could have yo-yoed we could have yo-yoed you could have yo-yoed they could have yo-yoed	I could have been yo-yoing you could have been yo-yoing he could have been yo-yoing we could have been yo-yoing you could have been yo-yoing they could have been yo-yoing

Négation

Forme simple	Forme en V-ing
I could not yo-yo you could not yo-yo he could not yo-yo we could not yo-yo you could not yo-yo they could not yo-yo	I could not be yo-yoing you could not be yo-yoing he could not be yo-yoing we could not be yo-yoing you could not be yo-yoing they could not be yo-yoing
Perfect	Perfect en V-ing
I could not have yo-yoed you could not have yo-yoed he could not have yo-yoed we could not have yo-yoed you could not have yo-yoed they could not have yo-yoed	I could not have been yo-yoing you could not have been yo-yoing he could not have been yo-yoing we could not have been yo-yoing you could not have been yo-yoing they could not have been yo-yoing

Forme interrogative

Forme simple	Forme en V-ing
could I yo-yo? could you yo-yo? could he yo-yo? could we yo-yo? could you yo-yo? could they yo-yo?	could I be yo-yoing? could you be yo-yoing? could he be yo-yoing? could we be yo-yoing? could you be yo-yoing? could they be yo-yoing?
Perfect	Perfect en V-ing
could I have yo-yoed? could you have yo-yoed? could he have yo-yoed? could we have yo-yoed? could you have yo-yoed? could they have yo-yoed?	could I have been yo-yoing? could you have been yo-yoing? could he have been yo-yoing? could we have been yo-yoing? could you have been yo-yoing? could they have been yo-yoing?

Forme interro-négative

Forme simple	Forme en V-ing
could I not yo-yo? could you not yo-yo? could he not yo-yo? could we not yo-yo? could you not yo-yo? could they not yo-yo?	could I not be yo-yoing? could you not be yo-yoing? could he not be yo-yoing? could we not be yo-yoing? could you not be yo-yoing? could they not be yo-yoing?
Perfect	Perfect en V-ing
could I not have yo-yoed? could you not have yo-yoed? could he not have yo-yoed? could we not have yo-yoed? could you not have yo-yoed? could they not have yo-yoed?	could I not have been yo-yoing? could you not have been yo-yoing? could he not have been yo-yoing? could we not have been yo-yoing? could you not have been yo-yoing? could they not have been yo-yoing?