could unstitch
Verbe régulier : unstitch - unstitched- unstitched

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could unstitch
you could unstitch
he could unstitch
we could unstitch
you could unstitch
they could unstitch 	I could be unstitching
you could be unstitching
he could be unstitching
we could be unstitching
you could be unstitching
they could be unstitching	I could have unstitched
you could have unstitched
he could have unstitched
we could have unstitched
you could have unstitched
they could have unstitched	I could have been unstitching
you could have been unstitching
he could have been unstitching
we could have been unstitching
you could have been unstitching
they could have been unstitching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't unstitch
you couldn't unstitch
he couldn't unstitch
we couldn't unstitch
you couldn't unstitch
they couldn't unstitch 	I couldn't be unstitching
you couldn't be unstitching
he couldn't be unstitching
we couldn't be unstitching
you couldn't be unstitching
they couldn't be unstitching	I couldn't have unstitched
you couldn't have unstitched
he couldn't have unstitched
we couldn't have unstitched
you couldn't have unstitched
they couldn't have unstitched	I couldn't have been unstitching
you couldn't have been unstitching
he couldn't have been unstitching
we couldn't have been unstitching
you couldn't have been unstitching
they couldn't have been unstitching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I unstitch?
could you unstitch?
could he unstitch?
could we unstitch?
could you unstitch?
could they unstitch? 	could I be unstitching?
could you be unstitching?
could he be unstitching?
could we be unstitching?
could you be unstitching?
could they be unstitching? 	could I have unstitched?
could you have unstitched?
could he have unstitched?
could we have unstitched?
could you have unstitched?
could they have unstitched? 	could I have been unstitching?
could you have been unstitching?
could he have been unstitching?
could we have been unstitching?
could you have been unstitching?
could they have been unstitching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I unstitch?
couldn't you unstitch?
couldn't he unstitch?
couldn't we unstitch?
couldn't you unstitch?
couldn't they unstitch? 	couldn't I be unstitching?
couldn't you be unstitching?
couldn't he be unstitching?
couldn't we be unstitching?
couldn't you be unstitching?
couldn't they be unstitching? 	couldn't I have unstitched?
couldn't you have unstitched?
couldn't he have unstitched?
couldn't we have unstitched?
couldn't you have unstitched?
couldn't they have unstitched? 	couldn't I have been unstitching?
couldn't you have been unstitching?
couldn't he have been unstitching?
couldn't we have been unstitching?
couldn't you have been unstitching?
couldn't they have been unstitching?