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
he must untune
we must untune
you must untune
they must untune 	I must be untuning
you must be untuning
he must be untuning
we must be untuning
you must be untuning
they must be untuning	I must have untuned
you must have untuned
he 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
he 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 must not untune
you must not untune
he must not untune
we must not untune
you must not untune
they must not untune 	I must not be untuning
you must not be untuning
he must not be untuning
we must not be untuning
you must not be untuning
they must not be untuning	I must not have untuned
you must not have untuned
he must not have untuned
we must not have untuned
you must not have untuned
they must not have untuned	I must not have been untuning
you must not have been untuning
he must not have been untuning
we must not have been untuning
you must not have been untuning
they must not have been untuning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I untune?
must you untune?
must he untune?
must we untune?
must you untune?
must they untune? 	must I be untuning?
must you be untuning?
must he be untuning?
must we be untuning?
must you be untuning?
must they be untuning? 	must I have untuned?
must you have untuned?
must he 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 he 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 	
must I not untune?
must you not untune?
must he not untune?
must we not untune?
must you not untune?
must they not untune? 	must I not be untuning?
must you not be untuning?
must he not be untuning?
must we not be untuning?
must you not be untuning?
must they not be untuning? 	must I not have untuned?
must you not have untuned?
must he not have untuned?
must we not have untuned?
must you not have untuned?
must they not have untuned? 	must I not have been untuning?
must you not have been untuning?
must he not have been untuning?
must we not have been untuning?
must you not have been untuning?
must they not have been untuning?