must sundown
Verbe régulier : sundown - sundowned- sundowned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sundown
you must sundown
he must sundown
we must sundown
you must sundown
they must sundown 	I must be sundowning
you must be sundowning
he must be sundowning
we must be sundowning
you must be sundowning
they must be sundowning	I must have sundowned
you must have sundowned
he must have sundowned
we must have sundowned
you must have sundowned
they must have sundowned	I must have been sundowning
you must have been sundowning
he must have been sundowning
we must have been sundowning
you must have been sundowning
they must have been sundowning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't sundown
you mustn't sundown
he mustn't sundown
we mustn't sundown
you mustn't sundown
they mustn't sundown 	I mustn't be sundowning
you mustn't be sundowning
he mustn't be sundowning
we mustn't be sundowning
you mustn't be sundowning
they mustn't be sundowning	I mustn't have sundowned
you mustn't have sundowned
he mustn't have sundowned
we mustn't have sundowned
you mustn't have sundowned
they mustn't have sundowned	I mustn't have been sundowning
you mustn't have been sundowning
he mustn't have been sundowning
we mustn't have been sundowning
you mustn't have been sundowning
they mustn't have been sundowning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sundown?
must you sundown?
must he sundown?
must we sundown?
must you sundown?
must they sundown? 	must I be sundowning?
must you be sundowning?
must he be sundowning?
must we be sundowning?
must you be sundowning?
must they be sundowning? 	must I have sundowned?
must you have sundowned?
must he have sundowned?
must we have sundowned?
must you have sundowned?
must they have sundowned? 	must I have been sundowning?
must you have been sundowning?
must he have been sundowning?
must we have been sundowning?
must you have been sundowning?
must they have been sundowning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I sundown?
mustn't you sundown?
mustn't he sundown?
mustn't we sundown?
mustn't you sundown?
mustn't they sundown? 	mustn't I be sundowning?
mustn't you be sundowning?
mustn't he be sundowning?
mustn't we be sundowning?
mustn't you be sundowning?
mustn't they be sundowning? 	mustn't I have sundowned?
mustn't you have sundowned?
mustn't he have sundowned?
mustn't we have sundowned?
mustn't you have sundowned?
mustn't they have sundowned? 	mustn't I have been sundowning?
mustn't you have been sundowning?
mustn't he have been sundowning?
mustn't we have been sundowning?
mustn't you have been sundowning?
mustn't they have been sundowning?