Conjugaison du verbe anglais
COULD SPIFF

Verbe régulier : spiff - spiffed - spiffed

Affirmation

Forme simple	Forme en V-ing
I could spiff you could spiff she could spiff we could spiff you could spiff they could spiff	I could be spiffing you could be spiffing she could be spiffing we could be spiffing you could be spiffing they could be spiffing
Perfect	Perfect en V-ing
I could have spiffed you could have spiffed she could have spiffed we could have spiffed you could have spiffed they could have spiffed	I could have been spiffing you could have been spiffing she could have been spiffing we could have been spiffing you could have been spiffing they could have been spiffing

Négation

Forme simple	Forme en V-ing
I could not spiff you could not spiff she could not spiff we could not spiff you could not spiff they could not spiff	I could not be spiffing you could not be spiffing she could not be spiffing we could not be spiffing you could not be spiffing they could not be spiffing
Perfect	Perfect en V-ing
I could not have spiffed you could not have spiffed she could not have spiffed we could not have spiffed you could not have spiffed they could not have spiffed	I could not have been spiffing you could not have been spiffing she could not have been spiffing we could not have been spiffing you could not have been spiffing they could not have been spiffing

Forme interrogative

Forme simple	Forme en V-ing
could I spiff? could you spiff? could she spiff? could we spiff? could you spiff? could they spiff?	could I be spiffing? could you be spiffing? could she be spiffing? could we be spiffing? could you be spiffing? could they be spiffing?
Perfect	Perfect en V-ing
could I have spiffed? could you have spiffed? could she have spiffed? could we have spiffed? could you have spiffed? could they have spiffed?	could I have been spiffing? could you have been spiffing? could she have been spiffing? could we have been spiffing? could you have been spiffing? could they have been spiffing?

Forme interro-négative

Forme simple	Forme en V-ing
could I not spiff? could you not spiff? could she not spiff? could we not spiff? could you not spiff? could they not spiff?	could I not be spiffing? could you not be spiffing? could she not be spiffing? could we not be spiffing? could you not be spiffing? could they not be spiffing?
Perfect	Perfect en V-ing
could I not have spiffed? could you not have spiffed? could she not have spiffed? could we not have spiffed? could you not have spiffed? could they not have spiffed?	could I not have been spiffing? could you not have been spiffing? could she not have been spiffing? could we not have been spiffing? could you not have been spiffing? could they not have been spiffing?