Conjugaison du verbe anglais
COULD STIFF

Verbe régulier : stiff - stiffed - stiffed

Affirmation

Forme simple	Forme en V-ing
I could stiff you could stiff she could stiff we could stiff you could stiff they could stiff	I could be stiffing you could be stiffing she could be stiffing we could be stiffing you could be stiffing they could be stiffing
Perfect	Perfect en V-ing
I could have stiffed you could have stiffed she could have stiffed we could have stiffed you could have stiffed they could have stiffed	I could have been stiffing you could have been stiffing she could have been stiffing we could have been stiffing you could have been stiffing they could have been stiffing

Négation

Forme simple	Forme en V-ing
I could not stiff you could not stiff she could not stiff we could not stiff you could not stiff they could not stiff	I could not be stiffing you could not be stiffing she could not be stiffing we could not be stiffing you could not be stiffing they could not be stiffing
Perfect	Perfect en V-ing
I could not have stiffed you could not have stiffed she could not have stiffed we could not have stiffed you could not have stiffed they could not have stiffed	I could not have been stiffing you could not have been stiffing she could not have been stiffing we could not have been stiffing you could not have been stiffing they could not have been stiffing

Forme interrogative

Forme simple	Forme en V-ing
could I stiff? could you stiff? could she stiff? could we stiff? could you stiff? could they stiff?	could I be stiffing? could you be stiffing? could she be stiffing? could we be stiffing? could you be stiffing? could they be stiffing?
Perfect	Perfect en V-ing
could I have stiffed? could you have stiffed? could she have stiffed? could we have stiffed? could you have stiffed? could they have stiffed?	could I have been stiffing? could you have been stiffing? could she have been stiffing? could we have been stiffing? could you have been stiffing? could they have been stiffing?

Forme interro-négative

Forme simple	Forme en V-ing
could I not stiff? could you not stiff? could she not stiff? could we not stiff? could you not stiff? could they not stiff?	could I not be stiffing? could you not be stiffing? could she not be stiffing? could we not be stiffing? could you not be stiffing? could they not be stiffing?
Perfect	Perfect en V-ing
could I not have stiffed? could you not have stiffed? could she not have stiffed? could we not have stiffed? could you not have stiffed? could they not have stiffed?	could I not have been stiffing? could you not have been stiffing? could she not have been stiffing? could we not have been stiffing? could you not have been stiffing? could they not have been stiffing?