could double-stop
Verbe régulier : double-stop - double-stoped- double-stoped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could double-stop
you could double-stop
he could double-stop
we could double-stop
you could double-stop
they could double-stop 	I could be double-stoping
you could be double-stoping
he could be double-stoping
we could be double-stoping
you could be double-stoping
they could be double-stoping	I could have double-stoped
you could have double-stoped
he could have double-stoped
we could have double-stoped
you could have double-stoped
they could have double-stoped	I could have been double-stoping
you could have been double-stoping
he could have been double-stoping
we could have been double-stoping
you could have been double-stoping
they could have been double-stoping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't double-stop
you couldn't double-stop
he couldn't double-stop
we couldn't double-stop
you couldn't double-stop
they couldn't double-stop 	I couldn't be double-stoping
you couldn't be double-stoping
he couldn't be double-stoping
we couldn't be double-stoping
you couldn't be double-stoping
they couldn't be double-stoping	I couldn't have double-stoped
you couldn't have double-stoped
he couldn't have double-stoped
we couldn't have double-stoped
you couldn't have double-stoped
they couldn't have double-stoped	I couldn't have been double-stoping
you couldn't have been double-stoping
he couldn't have been double-stoping
we couldn't have been double-stoping
you couldn't have been double-stoping
they couldn't have been double-stoping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I double-stop?
could you double-stop?
could he double-stop?
could we double-stop?
could you double-stop?
could they double-stop? 	could I be double-stoping?
could you be double-stoping?
could he be double-stoping?
could we be double-stoping?
could you be double-stoping?
could they be double-stoping? 	could I have double-stoped?
could you have double-stoped?
could he have double-stoped?
could we have double-stoped?
could you have double-stoped?
could they have double-stoped? 	could I have been double-stoping?
could you have been double-stoping?
could he have been double-stoping?
could we have been double-stoping?
could you have been double-stoping?
could they have been double-stoping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I double-stop?
couldn't you double-stop?
couldn't he double-stop?
couldn't we double-stop?
couldn't you double-stop?
couldn't they double-stop? 	couldn't I be double-stoping?
couldn't you be double-stoping?
couldn't he be double-stoping?
couldn't we be double-stoping?
couldn't you be double-stoping?
couldn't they be double-stoping? 	couldn't I have double-stoped?
couldn't you have double-stoped?
couldn't he have double-stoped?
couldn't we have double-stoped?
couldn't you have double-stoped?
couldn't they have double-stoped? 	couldn't I have been double-stoping?
couldn't you have been double-stoping?
couldn't he have been double-stoping?
couldn't we have been double-stoping?
couldn't you have been double-stoping?
couldn't they have been double-stoping?