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 mustn't defect
you mustn't defect
she mustn't defect
we mustn't defect
you mustn't defect
they mustn't defect 	I mustn't be defecting
you mustn't be defecting
she mustn't be defecting
we mustn't be defecting
you mustn't be defecting
they mustn't be defecting	I mustn't have defected
you mustn't have defected
she mustn't have defected
we mustn't have defected
you mustn't have defected
they mustn't have defected	I mustn't have been defecting
you mustn't have been defecting
she mustn't have been defecting
we mustn't have been defecting
you mustn't have been defecting
they mustn't 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 	
mustn't I defect?
mustn't you defect?
mustn't she defect?
mustn't we defect?
mustn't you defect?
mustn't they defect? 	mustn't I be defecting?
mustn't you be defecting?
mustn't she be defecting?
mustn't we be defecting?
mustn't you be defecting?
mustn't they be defecting? 	mustn't I have defected?
mustn't you have defected?
mustn't she have defected?
mustn't we have defected?
mustn't you have defected?
mustn't they have defected? 	mustn't I have been defecting?
mustn't you have been defecting?
mustn't she have been defecting?
mustn't we have been defecting?
mustn't you have been defecting?
mustn't they have been defecting?