must fray
Verbe régulier : fray - frayed- frayed
Traduction française : effilocher - s'effilocher 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must fray
you must fray
she must fray
we must fray
you must fray
they must fray 	I must be fraying
you must be fraying
she must be fraying
we must be fraying
you must be fraying
they must be fraying	I must have frayed
you must have frayed
she must have frayed
we must have frayed
you must have frayed
they must have frayed	I must have been fraying
you must have been fraying
she must have been fraying
we must have been fraying
you must have been fraying
they must have been fraying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't fray
you mustn't fray
she mustn't fray
we mustn't fray
you mustn't fray
they mustn't fray 	I mustn't be fraying
you mustn't be fraying
she mustn't be fraying
we mustn't be fraying
you mustn't be fraying
they mustn't be fraying	I mustn't have frayed
you mustn't have frayed
she mustn't have frayed
we mustn't have frayed
you mustn't have frayed
they mustn't have frayed	I mustn't have been fraying
you mustn't have been fraying
she mustn't have been fraying
we mustn't have been fraying
you mustn't have been fraying
they mustn't have been fraying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I fray?
must you fray?
must she fray?
must we fray?
must you fray?
must they fray? 	must I be fraying?
must you be fraying?
must she be fraying?
must we be fraying?
must you be fraying?
must they be fraying? 	must I have frayed?
must you have frayed?
must she have frayed?
must we have frayed?
must you have frayed?
must they have frayed? 	must I have been fraying?
must you have been fraying?
must she have been fraying?
must we have been fraying?
must you have been fraying?
must they have been fraying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I fray?
mustn't you fray?
mustn't she fray?
mustn't we fray?
mustn't you fray?
mustn't they fray? 	mustn't I be fraying?
mustn't you be fraying?
mustn't she be fraying?
mustn't we be fraying?
mustn't you be fraying?
mustn't they be fraying? 	mustn't I have frayed?
mustn't you have frayed?
mustn't she have frayed?
mustn't we have frayed?
mustn't you have frayed?
mustn't they have frayed? 	mustn't I have been fraying?
mustn't you have been fraying?
mustn't she have been fraying?
mustn't we have been fraying?
mustn't you have been fraying?
mustn't they have been fraying?