could jackknife
Verbe régulier : jackknife - jackknifed- jackknifed
Traduction française : se mettre en portefeuille 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could jackknife
you could jackknife
he could jackknife
we could jackknife
you could jackknife
they could jackknife 	I could be jackknifing
you could be jackknifing
he could be jackknifing
we could be jackknifing
you could be jackknifing
they could be jackknifing	I could have jackknifed
you could have jackknifed
he could have jackknifed
we could have jackknifed
you could have jackknifed
they could have jackknifed	I could have been jackknifing
you could have been jackknifing
he could have been jackknifing
we could have been jackknifing
you could have been jackknifing
they could have been jackknifing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't jackknife
you couldn't jackknife
he couldn't jackknife
we couldn't jackknife
you couldn't jackknife
they couldn't jackknife 	I couldn't be jackknifing
you couldn't be jackknifing
he couldn't be jackknifing
we couldn't be jackknifing
you couldn't be jackknifing
they couldn't be jackknifing	I couldn't have jackknifed
you couldn't have jackknifed
he couldn't have jackknifed
we couldn't have jackknifed
you couldn't have jackknifed
they couldn't have jackknifed	I couldn't have been jackknifing
you couldn't have been jackknifing
he couldn't have been jackknifing
we couldn't have been jackknifing
you couldn't have been jackknifing
they couldn't have been jackknifing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I jackknife?
could you jackknife?
could he jackknife?
could we jackknife?
could you jackknife?
could they jackknife? 	could I be jackknifing?
could you be jackknifing?
could he be jackknifing?
could we be jackknifing?
could you be jackknifing?
could they be jackknifing? 	could I have jackknifed?
could you have jackknifed?
could he have jackknifed?
could we have jackknifed?
could you have jackknifed?
could they have jackknifed? 	could I have been jackknifing?
could you have been jackknifing?
could he have been jackknifing?
could we have been jackknifing?
could you have been jackknifing?
could they have been jackknifing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I jackknife?
couldn't you jackknife?
couldn't he jackknife?
couldn't we jackknife?
couldn't you jackknife?
couldn't they jackknife? 	couldn't I be jackknifing?
couldn't you be jackknifing?
couldn't he be jackknifing?
couldn't we be jackknifing?
couldn't you be jackknifing?
couldn't they be jackknifing? 	couldn't I have jackknifed?
couldn't you have jackknifed?
couldn't he have jackknifed?
couldn't we have jackknifed?
couldn't you have jackknifed?
couldn't they have jackknifed? 	couldn't I have been jackknifing?
couldn't you have been jackknifing?
couldn't he have been jackknifing?
couldn't we have been jackknifing?
couldn't you have been jackknifing?
couldn't they have been jackknifing?