must unteach
Verbe irrégulier : unteach - untaught- untaught

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unteach
you must unteach
she must unteach
we must unteach
you must unteach
they must unteach 	I must be unteaching
you must be unteaching
she must be unteaching
we must be unteaching
you must be unteaching
they must be unteaching	I must have untaught
you must have untaught
she must have untaught
we must have untaught
you must have untaught
they must have untaught	I must have been unteaching
you must have been unteaching
she must have been unteaching
we must have been unteaching
you must have been unteaching
they must have been unteaching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not unteach
you must not unteach
she must not unteach
we must not unteach
you must not unteach
they must not unteach 	I must not be unteaching
you must not be unteaching
she must not be unteaching
we must not be unteaching
you must not be unteaching
they must not be unteaching	I must not have untaught
you must not have untaught
she must not have untaught
we must not have untaught
you must not have untaught
they must not have untaught	I must not have been unteaching
you must not have been unteaching
she must not have been unteaching
we must not have been unteaching
you must not have been unteaching
they must not have been unteaching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unteach?
must you unteach?
must she unteach?
must we unteach?
must you unteach?
must they unteach? 	must I be unteaching?
must you be unteaching?
must she be unteaching?
must we be unteaching?
must you be unteaching?
must they be unteaching? 	must I have untaught?
must you have untaught?
must she have untaught?
must we have untaught?
must you have untaught?
must they have untaught? 	must I have been unteaching?
must you have been unteaching?
must she have been unteaching?
must we have been unteaching?
must you have been unteaching?
must they have been unteaching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not unteach?
must you not unteach?
must she not unteach?
must we not unteach?
must you not unteach?
must they not unteach? 	must I not be unteaching?
must you not be unteaching?
must she not be unteaching?
must we not be unteaching?
must you not be unteaching?
must they not be unteaching? 	must I not have untaught?
must you not have untaught?
must she not have untaught?
must we not have untaught?
must you not have untaught?
must they not have untaught? 	must I not have been unteaching?
must you not have been unteaching?
must she not have been unteaching?
must we not have been unteaching?
must you not have been unteaching?
must they not have been unteaching?