must unknot
Verbe régulier : unknot - unknotted- unknotted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unknot
you must unknot
he must unknot
we must unknot
you must unknot
they must unknot 	I must be unknotting
you must be unknotting
he must be unknotting
we must be unknotting
you must be unknotting
they must be unknotting	I must have unknotted
you must have unknotted
he must have unknotted
we must have unknotted
you must have unknotted
they must have unknotted	I must have been unknotting
you must have been unknotting
he must have been unknotting
we must have been unknotting
you must have been unknotting
they must have been unknotting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't unknot
you mustn't unknot
he mustn't unknot
we mustn't unknot
you mustn't unknot
they mustn't unknot 	I mustn't be unknotting
you mustn't be unknotting
he mustn't be unknotting
we mustn't be unknotting
you mustn't be unknotting
they mustn't be unknotting	I mustn't have unknotted
you mustn't have unknotted
he mustn't have unknotted
we mustn't have unknotted
you mustn't have unknotted
they mustn't have unknotted	I mustn't have been unknotting
you mustn't have been unknotting
he mustn't have been unknotting
we mustn't have been unknotting
you mustn't have been unknotting
they mustn't have been unknotting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unknot?
must you unknot?
must he unknot?
must we unknot?
must you unknot?
must they unknot? 	must I be unknotting?
must you be unknotting?
must he be unknotting?
must we be unknotting?
must you be unknotting?
must they be unknotting? 	must I have unknotted?
must you have unknotted?
must he have unknotted?
must we have unknotted?
must you have unknotted?
must they have unknotted? 	must I have been unknotting?
must you have been unknotting?
must he have been unknotting?
must we have been unknotting?
must you have been unknotting?
must they have been unknotting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I unknot?
mustn't you unknot?
mustn't he unknot?
mustn't we unknot?
mustn't you unknot?
mustn't they unknot? 	mustn't I be unknotting?
mustn't you be unknotting?
mustn't he be unknotting?
mustn't we be unknotting?
mustn't you be unknotting?
mustn't they be unknotting? 	mustn't I have unknotted?
mustn't you have unknotted?
mustn't he have unknotted?
mustn't we have unknotted?
mustn't you have unknotted?
mustn't they have unknotted? 	mustn't I have been unknotting?
mustn't you have been unknotting?
mustn't he have been unknotting?
mustn't we have been unknotting?
mustn't you have been unknotting?
mustn't they have been unknotting?