must forecast
Verbe irrégulier : forecast - forecast- forecast
Traduction française : prévoir - pronostiquer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must forecast
you must forecast
he must forecast
we must forecast
you must forecast
they must forecast 	I must be forecasting
you must be forecasting
he must be forecasting
we must be forecasting
you must be forecasting
they must be forecasting	I must have forecast
you must have forecast
he must have forecast
we must have forecast
you must have forecast
they must have forecast	I must have been forecasting
you must have been forecasting
he must have been forecasting
we must have been forecasting
you must have been forecasting
they must have been forecasting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't forecast
you mustn't forecast
he mustn't forecast
we mustn't forecast
you mustn't forecast
they mustn't forecast 	I mustn't be forecasting
you mustn't be forecasting
he mustn't be forecasting
we mustn't be forecasting
you mustn't be forecasting
they mustn't be forecasting	I mustn't have forecast
you mustn't have forecast
he mustn't have forecast
we mustn't have forecast
you mustn't have forecast
they mustn't have forecast	I mustn't have been forecasting
you mustn't have been forecasting
he mustn't have been forecasting
we mustn't have been forecasting
you mustn't have been forecasting
they mustn't have been forecasting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I forecast?
must you forecast?
must he forecast?
must we forecast?
must you forecast?
must they forecast? 	must I be forecasting?
must you be forecasting?
must he be forecasting?
must we be forecasting?
must you be forecasting?
must they be forecasting? 	must I have forecast?
must you have forecast?
must he have forecast?
must we have forecast?
must you have forecast?
must they have forecast? 	must I have been forecasting?
must you have been forecasting?
must he have been forecasting?
must we have been forecasting?
must you have been forecasting?
must they have been forecasting? 	

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