must untune
Verbe régulier : untune - untuned- untuned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must untune
you must untune
she must untune
we must untune
you must untune
they must untune 	I must be untuning
you must be untuning
she must be untuning
we must be untuning
you must be untuning
they must be untuning	I must have untuned
you must have untuned
she must have untuned
we must have untuned
you must have untuned
they must have untuned	I must have been untuning
you must have been untuning
she must have been untuning
we must have been untuning
you must have been untuning
they must have been untuning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't untune
you mustn't untune
she mustn't untune
we mustn't untune
you mustn't untune
they mustn't untune 	I mustn't be untuning
you mustn't be untuning
she mustn't be untuning
we mustn't be untuning
you mustn't be untuning
they mustn't be untuning	I mustn't have untuned
you mustn't have untuned
she mustn't have untuned
we mustn't have untuned
you mustn't have untuned
they mustn't have untuned	I mustn't have been untuning
you mustn't have been untuning
she mustn't have been untuning
we mustn't have been untuning
you mustn't have been untuning
they mustn't have been untuning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I untune?
must you untune?
must she untune?
must we untune?
must you untune?
must they untune? 	must I be untuning?
must you be untuning?
must she be untuning?
must we be untuning?
must you be untuning?
must they be untuning? 	must I have untuned?
must you have untuned?
must she have untuned?
must we have untuned?
must you have untuned?
must they have untuned? 	must I have been untuning?
must you have been untuning?
must she have been untuning?
must we have been untuning?
must you have been untuning?
must they have been untuning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I untune?
mustn't you untune?
mustn't she untune?
mustn't we untune?
mustn't you untune?
mustn't they untune? 	mustn't I be untuning?
mustn't you be untuning?
mustn't she be untuning?
mustn't we be untuning?
mustn't you be untuning?
mustn't they be untuning? 	mustn't I have untuned?
mustn't you have untuned?
mustn't she have untuned?
mustn't we have untuned?
mustn't you have untuned?
mustn't they have untuned? 	mustn't I have been untuning?
mustn't you have been untuning?
mustn't she have been untuning?
mustn't we have been untuning?
mustn't you have been untuning?
mustn't they have been untuning?