must vault
Verbo regular: vault - vaulted- vaulted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must vault
you must vault
he must vault
we must vault
you must vault
they must vault 	I must be vaulting
you must be vaulting
he must be vaulting
we must be vaulting
you must be vaulting
they must be vaulting	I must have vaulted
you must have vaulted
he must have vaulted
we must have vaulted
you must have vaulted
they must have vaulted	I must have been vaulting
you must have been vaulting
he must have been vaulting
we must have been vaulting
you must have been vaulting
they must have been vaulting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not vault
you must not vault
he must not vault
we must not vault
you must not vault
they must not vault 	I must not be vaulting
you must not be vaulting
he must not be vaulting
we must not be vaulting
you must not be vaulting
they must not be vaulting	I must not have vaulted
you must not have vaulted
he must not have vaulted
we must not have vaulted
you must not have vaulted
they must not have vaulted	I must not have been vaulting
you must not have been vaulting
he must not have been vaulting
we must not have been vaulting
you must not have been vaulting
they must not have been vaulting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I vault?
must you vault?
must he vault?
must we vault?
must you vault?
must they vault? 	must I be vaulting?
must you be vaulting?
must he be vaulting?
must we be vaulting?
must you be vaulting?
must they be vaulting? 	must I have vaulted?
must you have vaulted?
must he have vaulted?
must we have vaulted?
must you have vaulted?
must they have vaulted? 	must I have been vaulting?
must you have been vaulting?
must he have been vaulting?
must we have been vaulting?
must you have been vaulting?
must they have been vaulting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not vault?
must you not vault?
must he not vault?
must we not vault?
must you not vault?
must they not vault? 	must I not be vaulting?
must you not be vaulting?
must he not be vaulting?
must we not be vaulting?
must you not be vaulting?
must they not be vaulting? 	must I not have vaulted?
must you not have vaulted?
must he not have vaulted?
must we not have vaulted?
must you not have vaulted?
must they not have vaulted? 	must I not have been vaulting?
must you not have been vaulting?
must he not have been vaulting?
must we not have been vaulting?
must you not have been vaulting?
must they not have been vaulting?