must unscrew
Verbe régulier : unscrew - unscrewed- unscrewed
Traduction française : dévisser - se dévisser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must unscrew
you must unscrew
she must unscrew
we must unscrew
you must unscrew
they must unscrew 	I must be unscrewing
you must be unscrewing
she must be unscrewing
we must be unscrewing
you must be unscrewing
they must be unscrewing	I must have unscrewed
you must have unscrewed
she must have unscrewed
we must have unscrewed
you must have unscrewed
they must have unscrewed	I must have been unscrewing
you must have been unscrewing
she must have been unscrewing
we must have been unscrewing
you must have been unscrewing
they must have been unscrewing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't unscrew
you mustn't unscrew
she mustn't unscrew
we mustn't unscrew
you mustn't unscrew
they mustn't unscrew 	I mustn't be unscrewing
you mustn't be unscrewing
she mustn't be unscrewing
we mustn't be unscrewing
you mustn't be unscrewing
they mustn't be unscrewing	I mustn't have unscrewed
you mustn't have unscrewed
she mustn't have unscrewed
we mustn't have unscrewed
you mustn't have unscrewed
they mustn't have unscrewed	I mustn't have been unscrewing
you mustn't have been unscrewing
she mustn't have been unscrewing
we mustn't have been unscrewing
you mustn't have been unscrewing
they mustn't have been unscrewing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I unscrew?
must you unscrew?
must she unscrew?
must we unscrew?
must you unscrew?
must they unscrew? 	must I be unscrewing?
must you be unscrewing?
must she be unscrewing?
must we be unscrewing?
must you be unscrewing?
must they be unscrewing? 	must I have unscrewed?
must you have unscrewed?
must she have unscrewed?
must we have unscrewed?
must you have unscrewed?
must they have unscrewed? 	must I have been unscrewing?
must you have been unscrewing?
must she have been unscrewing?
must we have been unscrewing?
must you have been unscrewing?
must they have been unscrewing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I unscrew?
mustn't you unscrew?
mustn't she unscrew?
mustn't we unscrew?
mustn't you unscrew?
mustn't they unscrew? 	mustn't I be unscrewing?
mustn't you be unscrewing?
mustn't she be unscrewing?
mustn't we be unscrewing?
mustn't you be unscrewing?
mustn't they be unscrewing? 	mustn't I have unscrewed?
mustn't you have unscrewed?
mustn't she have unscrewed?
mustn't we have unscrewed?
mustn't you have unscrewed?
mustn't they have unscrewed? 	mustn't I have been unscrewing?
mustn't you have been unscrewing?
mustn't she have been unscrewing?
mustn't we have been unscrewing?
mustn't you have been unscrewing?
mustn't they have been unscrewing?