I could attribute you could attribute he could attribute we could attribute you could attribute they could attribute
Forme en V-ing
I could be attributing you could be attributing he could be attributing we could be attributing you could be attributing they could be attributing
Perfect
I could have attributed you could have attributed he could have attributed we could have attributed you could have attributed they could have attributed
Perfect en V-ing
I could have been attributing you could have been attributing he could have been attributing we could have been attributing you could have been attributing they could have been attributing
Négation
Forme simple
I could not attribute you could not attribute he could not attribute we could not attribute you could not attribute they could not attribute
Forme en V-ing
I could not be attributing you could not be attributing he could not be attributing we could not be attributing you could not be attributing they could not be attributing
Perfect
I could not have attributed you could not have attributed he could not have attributed we could not have attributed you could not have attributed they could not have attributed
Perfect en V-ing
I could not have been attributing you could not have been attributing he could not have been attributing we could not have been attributing you could not have been attributing they could not have been attributing
Forme interrogative
Forme simple
could I attribute? could you attribute? could he attribute? could we attribute? could you attribute? could they attribute?
Forme en V-ing
could I be attributing? could you be attributing? could he be attributing? could we be attributing? could you be attributing? could they be attributing?
Perfect
could I have attributed? could you have attributed? could he have attributed? could we have attributed? could you have attributed? could they have attributed?
Perfect en V-ing
could I have been attributing? could you have been attributing? could he have been attributing? could we have been attributing? could you have been attributing? could they have been attributing?
Forme interro-négative
Forme simple
could I not attribute? could you not attribute? could he not attribute? could we not attribute? could you not attribute? could they not attribute?
Forme en V-ing
could I not be attributing? could you not be attributing? could he not be attributing? could we not be attributing? could you not be attributing? could they not be attributing?
Perfect
could I not have attributed? could you not have attributed? could he not have attributed? could we not have attributed? could you not have attributed? could they not have attributed?
Perfect en V-ing
could I not have been attributing? could you not have been attributing? could he not have been attributing? could we not have been attributing? could you not have been attributing? could they not have been attributing?