must apprentice
Verbe régulier : apprentice - apprenticed- apprenticed
Traduction française : être en apprentissage 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must apprentice
you must apprentice
she must apprentice
we must apprentice
you must apprentice
they must apprentice 	I must be apprenticing
you must be apprenticing
she must be apprenticing
we must be apprenticing
you must be apprenticing
they must be apprenticing	I must have apprenticed
you must have apprenticed
she must have apprenticed
we must have apprenticed
you must have apprenticed
they must have apprenticed	I must have been apprenticing
you must have been apprenticing
she must have been apprenticing
we must have been apprenticing
you must have been apprenticing
they must have been apprenticing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not apprentice
you must not apprentice
she must not apprentice
we must not apprentice
you must not apprentice
they must not apprentice 	I must not be apprenticing
you must not be apprenticing
she must not be apprenticing
we must not be apprenticing
you must not be apprenticing
they must not be apprenticing	I must not have apprenticed
you must not have apprenticed
she must not have apprenticed
we must not have apprenticed
you must not have apprenticed
they must not have apprenticed	I must not have been apprenticing
you must not have been apprenticing
she must not have been apprenticing
we must not have been apprenticing
you must not have been apprenticing
they must not have been apprenticing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I apprentice?
must you apprentice?
must she apprentice?
must we apprentice?
must you apprentice?
must they apprentice? 	must I be apprenticing?
must you be apprenticing?
must she be apprenticing?
must we be apprenticing?
must you be apprenticing?
must they be apprenticing? 	must I have apprenticed?
must you have apprenticed?
must she have apprenticed?
must we have apprenticed?
must you have apprenticed?
must they have apprenticed? 	must I have been apprenticing?
must you have been apprenticing?
must she have been apprenticing?
must we have been apprenticing?
must you have been apprenticing?
must they have been apprenticing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not apprentice?
must you not apprentice?
must she not apprentice?
must we not apprentice?
must you not apprentice?
must they not apprentice? 	must I not be apprenticing?
must you not be apprenticing?
must she not be apprenticing?
must we not be apprenticing?
must you not be apprenticing?
must they not be apprenticing? 	must I not have apprenticed?
must you not have apprenticed?
must she not have apprenticed?
must we not have apprenticed?
must you not have apprenticed?
must they not have apprenticed? 	must I not have been apprenticing?
must you not have been apprenticing?
must she not have been apprenticing?
must we not have been apprenticing?
must you not have been apprenticing?
must they not have been apprenticing?