must fault
Verbo regular: fault - faulted- faulted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fault
you must fault
he must fault
we must fault
you must fault
they must fault 	I must be faulting
you must be faulting
he must be faulting
we must be faulting
you must be faulting
they must be faulting	I must have faulted
you must have faulted
he must have faulted
we must have faulted
you must have faulted
they must have faulted	I must have been faulting
you must have been faulting
he must have been faulting
we must have been faulting
you must have been faulting
they must have been faulting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not fault
you must not fault
he must not fault
we must not fault
you must not fault
they must not fault 	I must not be faulting
you must not be faulting
he must not be faulting
we must not be faulting
you must not be faulting
they must not be faulting	I must not have faulted
you must not have faulted
he must not have faulted
we must not have faulted
you must not have faulted
they must not have faulted	I must not have been faulting
you must not have been faulting
he must not have been faulting
we must not have been faulting
you must not have been faulting
they must not have been faulting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fault?
must you fault?
must he fault?
must we fault?
must you fault?
must they fault? 	must I be faulting?
must you be faulting?
must he be faulting?
must we be faulting?
must you be faulting?
must they be faulting? 	must I have faulted?
must you have faulted?
must he have faulted?
must we have faulted?
must you have faulted?
must they have faulted? 	must I have been faulting?
must you have been faulting?
must he have been faulting?
must we have been faulting?
must you have been faulting?
must they have been faulting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not fault?
must you not fault?
must he not fault?
must we not fault?
must you not fault?
must they not fault? 	must I not be faulting?
must you not be faulting?
must he not be faulting?
must we not be faulting?
must you not be faulting?
must they not be faulting? 	must I not have faulted?
must you not have faulted?
must he not have faulted?
must we not have faulted?
must you not have faulted?
must they not have faulted? 	must I not have been faulting?
must you not have been faulting?
must he not have been faulting?
must we not have been faulting?
must you not have been faulting?
must they not have been faulting?