must faff
Verbe régulier : faff - faffed- faffed
Traduction française : (UK) faire la mouche du coche 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must faff
you must faff
she must faff
we must faff
you must faff
they must faff 	I must be faffing
you must be faffing
she must be faffing
we must be faffing
you must be faffing
they must be faffing	I must have faffed
you must have faffed
she must have faffed
we must have faffed
you must have faffed
they must have faffed	I must have been faffing
you must have been faffing
she must have been faffing
we must have been faffing
you must have been faffing
they must have been faffing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not faff
you must not faff
she must not faff
we must not faff
you must not faff
they must not faff 	I must not be faffing
you must not be faffing
she must not be faffing
we must not be faffing
you must not be faffing
they must not be faffing	I must not have faffed
you must not have faffed
she must not have faffed
we must not have faffed
you must not have faffed
they must not have faffed	I must not have been faffing
you must not have been faffing
she must not have been faffing
we must not have been faffing
you must not have been faffing
they must not have been faffing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I faff?
must you faff?
must she faff?
must we faff?
must you faff?
must they faff? 	must I be faffing?
must you be faffing?
must she be faffing?
must we be faffing?
must you be faffing?
must they be faffing? 	must I have faffed?
must you have faffed?
must she have faffed?
must we have faffed?
must you have faffed?
must they have faffed? 	must I have been faffing?
must you have been faffing?
must she have been faffing?
must we have been faffing?
must you have been faffing?
must they have been faffing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not faff?
must you not faff?
must she not faff?
must we not faff?
must you not faff?
must they not faff? 	must I not be faffing?
must you not be faffing?
must she not be faffing?
must we not be faffing?
must you not be faffing?
must they not be faffing? 	must I not have faffed?
must you not have faffed?
must she not have faffed?
must we not have faffed?
must you not have faffed?
must they not have faffed? 	must I not have been faffing?
must you not have been faffing?
must she not have been faffing?
must we not have been faffing?
must you not have been faffing?
must they not have been faffing?