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 couldn't unjam
you couldn't unjam
he couldn't unjam
we couldn't unjam
you couldn't unjam
they couldn't unjam 	I couldn't be unjaming
you couldn't be unjaming
he couldn't be unjaming
we couldn't be unjaming
you couldn't be unjaming
they couldn't be unjaming	I couldn't have unjamed
you couldn't have unjamed
he couldn't have unjamed
we couldn't have unjamed
you couldn't have unjamed
they couldn't have unjamed	I couldn't have been unjaming
you couldn't have been unjaming
he couldn't have been unjaming
we couldn't have been unjaming
you couldn't have been unjaming
they couldn't 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 	
couldn't I unjam?
couldn't you unjam?
couldn't he unjam?
couldn't we unjam?
couldn't you unjam?
couldn't they unjam? 	couldn't I be unjaming?
couldn't you be unjaming?
couldn't he be unjaming?
couldn't we be unjaming?
couldn't you be unjaming?
couldn't they be unjaming? 	couldn't I have unjamed?
couldn't you have unjamed?
couldn't he have unjamed?
couldn't we have unjamed?
couldn't you have unjamed?
couldn't they have unjamed? 	couldn't I have been unjaming?
couldn't you have been unjaming?
couldn't he have been unjaming?
couldn't we have been unjaming?
couldn't you have been unjaming?
couldn't they have been unjaming?