must prevision
Verbe régulier : prevision - previsioned- previsioned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prevision
you must prevision
she must prevision
we must prevision
you must prevision
they must prevision 	I must be previsioning
you must be previsioning
she must be previsioning
we must be previsioning
you must be previsioning
they must be previsioning	I must have previsioned
you must have previsioned
she must have previsioned
we must have previsioned
you must have previsioned
they must have previsioned	I must have been previsioning
you must have been previsioning
she must have been previsioning
we must have been previsioning
you must have been previsioning
they must have been previsioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't prevision
you mustn't prevision
she mustn't prevision
we mustn't prevision
you mustn't prevision
they mustn't prevision 	I mustn't be previsioning
you mustn't be previsioning
she mustn't be previsioning
we mustn't be previsioning
you mustn't be previsioning
they mustn't be previsioning	I mustn't have previsioned
you mustn't have previsioned
she mustn't have previsioned
we mustn't have previsioned
you mustn't have previsioned
they mustn't have previsioned	I mustn't have been previsioning
you mustn't have been previsioning
she mustn't have been previsioning
we mustn't have been previsioning
you mustn't have been previsioning
they mustn't have been previsioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prevision?
must you prevision?
must she prevision?
must we prevision?
must you prevision?
must they prevision? 	must I be previsioning?
must you be previsioning?
must she be previsioning?
must we be previsioning?
must you be previsioning?
must they be previsioning? 	must I have previsioned?
must you have previsioned?
must she have previsioned?
must we have previsioned?
must you have previsioned?
must they have previsioned? 	must I have been previsioning?
must you have been previsioning?
must she have been previsioning?
must we have been previsioning?
must you have been previsioning?
must they have been previsioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I prevision?
mustn't you prevision?
mustn't she prevision?
mustn't we prevision?
mustn't you prevision?
mustn't they prevision? 	mustn't I be previsioning?
mustn't you be previsioning?
mustn't she be previsioning?
mustn't we be previsioning?
mustn't you be previsioning?
mustn't they be previsioning? 	mustn't I have previsioned?
mustn't you have previsioned?
mustn't she have previsioned?
mustn't we have previsioned?
mustn't you have previsioned?
mustn't they have previsioned? 	mustn't I have been previsioning?
mustn't you have been previsioning?
mustn't she have been previsioning?
mustn't we have been previsioning?
mustn't you have been previsioning?
mustn't they have been previsioning?