could unjam
Verbe régulier : unjam - unjamed- unjamed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could unjam
you could unjam
he could unjam
we could unjam
you could unjam
they could unjam 	I could be unjaming
you could be unjaming
he could be unjaming
we could be unjaming
you could be unjaming
they could be unjaming	I could have unjamed
you could have unjamed
he could have unjamed
we could have unjamed
you could have unjamed
they could have unjamed	I could have been unjaming
you could have been unjaming
he could have been unjaming
we could have been unjaming
you could have been unjaming
they could have been unjaming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not unjam
you could not unjam
he could not unjam
we could not unjam
you could not unjam
they could not unjam 	I could not be unjaming
you could not be unjaming
he could not be unjaming
we could not be unjaming
you could not be unjaming
they could not be unjaming	I could not have unjamed
you could not have unjamed
he could not have unjamed
we could not have unjamed
you could not have unjamed
they could not have unjamed	I could not have been unjaming
you could not have been unjaming
he could not have been unjaming
we could not have been unjaming
you could not have been unjaming
they could not have been unjaming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I unjam?
could you unjam?
could he unjam?
could we unjam?
could you unjam?
could they unjam? 	could I be unjaming?
could you be unjaming?
could he be unjaming?
could we be unjaming?
could you be unjaming?
could they be unjaming? 	could I have unjamed?
could you have unjamed?
could he have unjamed?
could we have unjamed?
could you have unjamed?
could they have unjamed? 	could I have been unjaming?
could you have been unjaming?
could he have been unjaming?
could we have been unjaming?
could you have been unjaming?
could they have been unjaming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not unjam?
could you not unjam?
could he not unjam?
could we not unjam?
could you not unjam?
could they not unjam? 	could I not be unjaming?
could you not be unjaming?
could he not be unjaming?
could we not be unjaming?
could you not be unjaming?
could they not be unjaming? 	could I not have unjamed?
could you not have unjamed?
could he not have unjamed?
could we not have unjamed?
could you not have unjamed?
could they not have unjamed? 	could I not have been unjaming?
could you not have been unjaming?
could he not have been unjaming?
could we not have been unjaming?
could you not have been unjaming?
could they not have been unjaming?