must defect
Verbe régulier : defect - defected- defected
Traduction française : passer à l'étranger - quitter son parti pour un autre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must defect
you must defect
she must defect
we must defect
you must defect
they must defect 	I must be defecting
you must be defecting
she must be defecting
we must be defecting
you must be defecting
they must be defecting	I must have defected
you must have defected
she must have defected
we must have defected
you must have defected
they must have defected	I must have been defecting
you must have been defecting
she must have been defecting
we must have been defecting
you must have been defecting
they must have been defecting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not defect
you must not defect
she must not defect
we must not defect
you must not defect
they must not defect 	I must not be defecting
you must not be defecting
she must not be defecting
we must not be defecting
you must not be defecting
they must not be defecting	I must not have defected
you must not have defected
she must not have defected
we must not have defected
you must not have defected
they must not have defected	I must not have been defecting
you must not have been defecting
she must not have been defecting
we must not have been defecting
you must not have been defecting
they must not have been defecting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I defect?
must you defect?
must she defect?
must we defect?
must you defect?
must they defect? 	must I be defecting?
must you be defecting?
must she be defecting?
must we be defecting?
must you be defecting?
must they be defecting? 	must I have defected?
must you have defected?
must she have defected?
must we have defected?
must you have defected?
must they have defected? 	must I have been defecting?
must you have been defecting?
must she have been defecting?
must we have been defecting?
must you have been defecting?
must they have been defecting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not defect?
must you not defect?
must she not defect?
must we not defect?
must you not defect?
must they not defect? 	must I not be defecting?
must you not be defecting?
must she not be defecting?
must we not be defecting?
must you not be defecting?
must they not be defecting? 	must I not have defected?
must you not have defected?
must she not have defected?
must we not have defected?
must you not have defected?
must they not have defected? 	must I not have been defecting?
must you not have been defecting?
must she not have been defecting?
must we not have been defecting?
must you not have been defecting?
must they not have been defecting?