must prefertilize
Verbe régulier : prefertilize - prefertilized- prefertilized

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prefertilize
you must prefertilize
she must prefertilize
we must prefertilize
you must prefertilize
they must prefertilize 	I must be prefertilizing
you must be prefertilizing
she must be prefertilizing
we must be prefertilizing
you must be prefertilizing
they must be prefertilizing	I must have prefertilized
you must have prefertilized
she must have prefertilized
we must have prefertilized
you must have prefertilized
they must have prefertilized	I must have been prefertilizing
you must have been prefertilizing
she must have been prefertilizing
we must have been prefertilizing
you must have been prefertilizing
they must have been prefertilizing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't prefertilize
you mustn't prefertilize
she mustn't prefertilize
we mustn't prefertilize
you mustn't prefertilize
they mustn't prefertilize 	I mustn't be prefertilizing
you mustn't be prefertilizing
she mustn't be prefertilizing
we mustn't be prefertilizing
you mustn't be prefertilizing
they mustn't be prefertilizing	I mustn't have prefertilized
you mustn't have prefertilized
she mustn't have prefertilized
we mustn't have prefertilized
you mustn't have prefertilized
they mustn't have prefertilized	I mustn't have been prefertilizing
you mustn't have been prefertilizing
she mustn't have been prefertilizing
we mustn't have been prefertilizing
you mustn't have been prefertilizing
they mustn't have been prefertilizing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prefertilize?
must you prefertilize?
must she prefertilize?
must we prefertilize?
must you prefertilize?
must they prefertilize? 	must I be prefertilizing?
must you be prefertilizing?
must she be prefertilizing?
must we be prefertilizing?
must you be prefertilizing?
must they be prefertilizing? 	must I have prefertilized?
must you have prefertilized?
must she have prefertilized?
must we have prefertilized?
must you have prefertilized?
must they have prefertilized? 	must I have been prefertilizing?
must you have been prefertilizing?
must she have been prefertilizing?
must we have been prefertilizing?
must you have been prefertilizing?
must they have been prefertilizing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I prefertilize?
mustn't you prefertilize?
mustn't she prefertilize?
mustn't we prefertilize?
mustn't you prefertilize?
mustn't they prefertilize? 	mustn't I be prefertilizing?
mustn't you be prefertilizing?
mustn't she be prefertilizing?
mustn't we be prefertilizing?
mustn't you be prefertilizing?
mustn't they be prefertilizing? 	mustn't I have prefertilized?
mustn't you have prefertilized?
mustn't she have prefertilized?
mustn't we have prefertilized?
mustn't you have prefertilized?
mustn't they have prefertilized? 	mustn't I have been prefertilizing?
mustn't you have been prefertilizing?
mustn't she have been prefertilizing?
mustn't we have been prefertilizing?
mustn't you have been prefertilizing?
mustn't they have been prefertilizing?