must countenance
Verbe régulier : countenance - countenanced- countenanced
Traduction française : approuver - accepter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must countenance
you must countenance
she must countenance
we must countenance
you must countenance
they must countenance 	I must be countenancing
you must be countenancing
she must be countenancing
we must be countenancing
you must be countenancing
they must be countenancing	I must have countenanced
you must have countenanced
she must have countenanced
we must have countenanced
you must have countenanced
they must have countenanced	I must have been countenancing
you must have been countenancing
she must have been countenancing
we must have been countenancing
you must have been countenancing
they must have been countenancing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't countenance
you mustn't countenance
she mustn't countenance
we mustn't countenance
you mustn't countenance
they mustn't countenance 	I mustn't be countenancing
you mustn't be countenancing
she mustn't be countenancing
we mustn't be countenancing
you mustn't be countenancing
they mustn't be countenancing	I mustn't have countenanced
you mustn't have countenanced
she mustn't have countenanced
we mustn't have countenanced
you mustn't have countenanced
they mustn't have countenanced	I mustn't have been countenancing
you mustn't have been countenancing
she mustn't have been countenancing
we mustn't have been countenancing
you mustn't have been countenancing
they mustn't have been countenancing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I countenance?
must you countenance?
must she countenance?
must we countenance?
must you countenance?
must they countenance? 	must I be countenancing?
must you be countenancing?
must she be countenancing?
must we be countenancing?
must you be countenancing?
must they be countenancing? 	must I have countenanced?
must you have countenanced?
must she have countenanced?
must we have countenanced?
must you have countenanced?
must they have countenanced? 	must I have been countenancing?
must you have been countenancing?
must she have been countenancing?
must we have been countenancing?
must you have been countenancing?
must they have been countenancing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I countenance?
mustn't you countenance?
mustn't she countenance?
mustn't we countenance?
mustn't you countenance?
mustn't they countenance? 	mustn't I be countenancing?
mustn't you be countenancing?
mustn't she be countenancing?
mustn't we be countenancing?
mustn't you be countenancing?
mustn't they be countenancing? 	mustn't I have countenanced?
mustn't you have countenanced?
mustn't she have countenanced?
mustn't we have countenanced?
mustn't you have countenanced?
mustn't they have countenanced? 	mustn't I have been countenancing?
mustn't you have been countenancing?
mustn't she have been countenancing?
mustn't we have been countenancing?
mustn't you have been countenancing?
mustn't they have been countenancing?