must unstitch
Verbe régulier : unstitch - unstitched- unstitched

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

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

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

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