must deforest
Verbe régulier : deforest - deforested- deforested
Traduction française : déboiser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must deforest
you must deforest
he must deforest
we must deforest
you must deforest
they must deforest 	I must be deforesting
you must be deforesting
he must be deforesting
we must be deforesting
you must be deforesting
they must be deforesting	I must have deforested
you must have deforested
he must have deforested
we must have deforested
you must have deforested
they must have deforested	I must have been deforesting
you must have been deforesting
he must have been deforesting
we must have been deforesting
you must have been deforesting
they must have been deforesting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't deforest
you mustn't deforest
he mustn't deforest
we mustn't deforest
you mustn't deforest
they mustn't deforest 	I mustn't be deforesting
you mustn't be deforesting
he mustn't be deforesting
we mustn't be deforesting
you mustn't be deforesting
they mustn't be deforesting	I mustn't have deforested
you mustn't have deforested
he mustn't have deforested
we mustn't have deforested
you mustn't have deforested
they mustn't have deforested	I mustn't have been deforesting
you mustn't have been deforesting
he mustn't have been deforesting
we mustn't have been deforesting
you mustn't have been deforesting
they mustn't have been deforesting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I deforest?
must you deforest?
must he deforest?
must we deforest?
must you deforest?
must they deforest? 	must I be deforesting?
must you be deforesting?
must he be deforesting?
must we be deforesting?
must you be deforesting?
must they be deforesting? 	must I have deforested?
must you have deforested?
must he have deforested?
must we have deforested?
must you have deforested?
must they have deforested? 	must I have been deforesting?
must you have been deforesting?
must he have been deforesting?
must we have been deforesting?
must you have been deforesting?
must they have been deforesting? 	

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