must refilter
Verbe régulier : refilter - refiltered- refiltered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must refilter
you must refilter
she must refilter
we must refilter
you must refilter
they must refilter 	I must be refiltering
you must be refiltering
she must be refiltering
we must be refiltering
you must be refiltering
they must be refiltering	I must have refiltered
you must have refiltered
she must have refiltered
we must have refiltered
you must have refiltered
they must have refiltered	I must have been refiltering
you must have been refiltering
she must have been refiltering
we must have been refiltering
you must have been refiltering
they must have been refiltering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't refilter
you mustn't refilter
she mustn't refilter
we mustn't refilter
you mustn't refilter
they mustn't refilter 	I mustn't be refiltering
you mustn't be refiltering
she mustn't be refiltering
we mustn't be refiltering
you mustn't be refiltering
they mustn't be refiltering	I mustn't have refiltered
you mustn't have refiltered
she mustn't have refiltered
we mustn't have refiltered
you mustn't have refiltered
they mustn't have refiltered	I mustn't have been refiltering
you mustn't have been refiltering
she mustn't have been refiltering
we mustn't have been refiltering
you mustn't have been refiltering
they mustn't have been refiltering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I refilter?
must you refilter?
must she refilter?
must we refilter?
must you refilter?
must they refilter? 	must I be refiltering?
must you be refiltering?
must she be refiltering?
must we be refiltering?
must you be refiltering?
must they be refiltering? 	must I have refiltered?
must you have refiltered?
must she have refiltered?
must we have refiltered?
must you have refiltered?
must they have refiltered? 	must I have been refiltering?
must you have been refiltering?
must she have been refiltering?
must we have been refiltering?
must you have been refiltering?
must they have been refiltering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I refilter?
mustn't you refilter?
mustn't she refilter?
mustn't we refilter?
mustn't you refilter?
mustn't they refilter? 	mustn't I be refiltering?
mustn't you be refiltering?
mustn't she be refiltering?
mustn't we be refiltering?
mustn't you be refiltering?
mustn't they be refiltering? 	mustn't I have refiltered?
mustn't you have refiltered?
mustn't she have refiltered?
mustn't we have refiltered?
mustn't you have refiltered?
mustn't they have refiltered? 	mustn't I have been refiltering?
mustn't you have been refiltering?
mustn't she have been refiltering?
mustn't we have been refiltering?
mustn't you have been refiltering?
mustn't they have been refiltering?