must factorise
Verbe régulier : factorise - factorised- factorised
Traduction française : (UK) mettre en facteurs 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must factorise
you must factorise
he must factorise
we must factorise
you must factorise
they must factorise 	I must be factorising
you must be factorising
he must be factorising
we must be factorising
you must be factorising
they must be factorising	I must have factorised
you must have factorised
he must have factorised
we must have factorised
you must have factorised
they must have factorised	I must have been factorising
you must have been factorising
he must have been factorising
we must have been factorising
you must have been factorising
they must have been factorising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't factorise
you mustn't factorise
he mustn't factorise
we mustn't factorise
you mustn't factorise
they mustn't factorise 	I mustn't be factorising
you mustn't be factorising
he mustn't be factorising
we mustn't be factorising
you mustn't be factorising
they mustn't be factorising	I mustn't have factorised
you mustn't have factorised
he mustn't have factorised
we mustn't have factorised
you mustn't have factorised
they mustn't have factorised	I mustn't have been factorising
you mustn't have been factorising
he mustn't have been factorising
we mustn't have been factorising
you mustn't have been factorising
they mustn't have been factorising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I factorise?
must you factorise?
must he factorise?
must we factorise?
must you factorise?
must they factorise? 	must I be factorising?
must you be factorising?
must he be factorising?
must we be factorising?
must you be factorising?
must they be factorising? 	must I have factorised?
must you have factorised?
must he have factorised?
must we have factorised?
must you have factorised?
must they have factorised? 	must I have been factorising?
must you have been factorising?
must he have been factorising?
must we have been factorising?
must you have been factorising?
must they have been factorising? 	

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