I could hello you could hello he could hello we could hello you could hello they could hello
Forme en V-ing
I could be helloing you could be helloing he could be helloing we could be helloing you could be helloing they could be helloing
Perfect
I could have helloed you could have helloed he could have helloed we could have helloed you could have helloed they could have helloed
Perfect en V-ing
I could have been helloing you could have been helloing he could have been helloing we could have been helloing you could have been helloing they could have been helloing
Négation
Forme simple
I could not hello you could not hello he could not hello we could not hello you could not hello they could not hello
Forme en V-ing
I could not be helloing you could not be helloing he could not be helloing we could not be helloing you could not be helloing they could not be helloing
Perfect
I could not have helloed you could not have helloed he could not have helloed we could not have helloed you could not have helloed they could not have helloed
Perfect en V-ing
I could not have been helloing you could not have been helloing he could not have been helloing we could not have been helloing you could not have been helloing they could not have been helloing
Forme interrogative
Forme simple
could I hello? could you hello? could he hello? could we hello? could you hello? could they hello?
Forme en V-ing
could I be helloing? could you be helloing? could he be helloing? could we be helloing? could you be helloing? could they be helloing?
Perfect
could I have helloed? could you have helloed? could he have helloed? could we have helloed? could you have helloed? could they have helloed?
Perfect en V-ing
could I have been helloing? could you have been helloing? could he have been helloing? could we have been helloing? could you have been helloing? could they have been helloing?
Forme interro-négative
Forme simple
could I not hello? could you not hello? could he not hello? could we not hello? could you not hello? could they not hello?
Forme en V-ing
could I not be helloing? could you not be helloing? could he not be helloing? could we not be helloing? could you not be helloing? could they not be helloing?
Perfect
could I not have helloed? could you not have helloed? could he not have helloed? could we not have helloed? could you not have helloed? could they not have helloed?
Perfect en V-ing
could I not have been helloing? could you not have been helloing? could he not have been helloing? could we not have been helloing? could you not have been helloing? could they not have been helloing?