must loosen
Verbe régulier : loosen - loosened- loosened
Traduction française : desserrer - se desserrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must loosen
you must loosen
he must loosen
we must loosen
you must loosen
they must loosen 	I must be loosening
you must be loosening
he must be loosening
we must be loosening
you must be loosening
they must be loosening	I must have loosened
you must have loosened
he must have loosened
we must have loosened
you must have loosened
they must have loosened	I must have been loosening
you must have been loosening
he must have been loosening
we must have been loosening
you must have been loosening
they must have been loosening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't loosen
you mustn't loosen
he mustn't loosen
we mustn't loosen
you mustn't loosen
they mustn't loosen 	I mustn't be loosening
you mustn't be loosening
he mustn't be loosening
we mustn't be loosening
you mustn't be loosening
they mustn't be loosening	I mustn't have loosened
you mustn't have loosened
he mustn't have loosened
we mustn't have loosened
you mustn't have loosened
they mustn't have loosened	I mustn't have been loosening
you mustn't have been loosening
he mustn't have been loosening
we mustn't have been loosening
you mustn't have been loosening
they mustn't have been loosening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I loosen?
must you loosen?
must he loosen?
must we loosen?
must you loosen?
must they loosen? 	must I be loosening?
must you be loosening?
must he be loosening?
must we be loosening?
must you be loosening?
must they be loosening? 	must I have loosened?
must you have loosened?
must he have loosened?
must we have loosened?
must you have loosened?
must they have loosened? 	must I have been loosening?
must you have been loosening?
must he have been loosening?
must we have been loosening?
must you have been loosening?
must they have been loosening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I loosen?
mustn't you loosen?
mustn't he loosen?
mustn't we loosen?
mustn't you loosen?
mustn't they loosen? 	mustn't I be loosening?
mustn't you be loosening?
mustn't he be loosening?
mustn't we be loosening?
mustn't you be loosening?
mustn't they be loosening? 	mustn't I have loosened?
mustn't you have loosened?
mustn't he have loosened?
mustn't we have loosened?
mustn't you have loosened?
mustn't they have loosened? 	mustn't I have been loosening?
mustn't you have been loosening?
mustn't he have been loosening?
mustn't we have been loosening?
mustn't you have been loosening?
mustn't they have been loosening?