must singularize
Verbe régulier : singularize - singularized- singularized

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must singularize
you must singularize
she must singularize
we must singularize
you must singularize
they must singularize 	I must be singularizing
you must be singularizing
she must be singularizing
we must be singularizing
you must be singularizing
they must be singularizing	I must have singularized
you must have singularized
she must have singularized
we must have singularized
you must have singularized
they must have singularized	I must have been singularizing
you must have been singularizing
she must have been singularizing
we must have been singularizing
you must have been singularizing
they must have been singularizing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't singularize
you mustn't singularize
she mustn't singularize
we mustn't singularize
you mustn't singularize
they mustn't singularize 	I mustn't be singularizing
you mustn't be singularizing
she mustn't be singularizing
we mustn't be singularizing
you mustn't be singularizing
they mustn't be singularizing	I mustn't have singularized
you mustn't have singularized
she mustn't have singularized
we mustn't have singularized
you mustn't have singularized
they mustn't have singularized	I mustn't have been singularizing
you mustn't have been singularizing
she mustn't have been singularizing
we mustn't have been singularizing
you mustn't have been singularizing
they mustn't have been singularizing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I singularize?
must you singularize?
must she singularize?
must we singularize?
must you singularize?
must they singularize? 	must I be singularizing?
must you be singularizing?
must she be singularizing?
must we be singularizing?
must you be singularizing?
must they be singularizing? 	must I have singularized?
must you have singularized?
must she have singularized?
must we have singularized?
must you have singularized?
must they have singularized? 	must I have been singularizing?
must you have been singularizing?
must she have been singularizing?
must we have been singularizing?
must you have been singularizing?
must they have been singularizing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I singularize?
mustn't you singularize?
mustn't she singularize?
mustn't we singularize?
mustn't you singularize?
mustn't they singularize? 	mustn't I be singularizing?
mustn't you be singularizing?
mustn't she be singularizing?
mustn't we be singularizing?
mustn't you be singularizing?
mustn't they be singularizing? 	mustn't I have singularized?
mustn't you have singularized?
mustn't she have singularized?
mustn't we have singularized?
mustn't you have singularized?
mustn't they have singularized? 	mustn't I have been singularizing?
mustn't you have been singularizing?
mustn't she have been singularizing?
mustn't we have been singularizing?
mustn't you have been singularizing?
mustn't they have been singularizing?