must ferule
Verbo regular: ferule - feruled- feruled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must ferule
you must ferule
he must ferule
we must ferule
you must ferule
they must ferule 	I must be feruling
you must be feruling
he must be feruling
we must be feruling
you must be feruling
they must be feruling	I must have feruled
you must have feruled
he must have feruled
we must have feruled
you must have feruled
they must have feruled	I must have been feruling
you must have been feruling
he must have been feruling
we must have been feruling
you must have been feruling
they must have been feruling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not ferule
you must not ferule
he must not ferule
we must not ferule
you must not ferule
they must not ferule 	I must not be feruling
you must not be feruling
he must not be feruling
we must not be feruling
you must not be feruling
they must not be feruling	I must not have feruled
you must not have feruled
he must not have feruled
we must not have feruled
you must not have feruled
they must not have feruled	I must not have been feruling
you must not have been feruling
he must not have been feruling
we must not have been feruling
you must not have been feruling
they must not have been feruling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I ferule?
must you ferule?
must he ferule?
must we ferule?
must you ferule?
must they ferule? 	must I be feruling?
must you be feruling?
must he be feruling?
must we be feruling?
must you be feruling?
must they be feruling? 	must I have feruled?
must you have feruled?
must he have feruled?
must we have feruled?
must you have feruled?
must they have feruled? 	must I have been feruling?
must you have been feruling?
must he have been feruling?
must we have been feruling?
must you have been feruling?
must they have been feruling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not ferule?
must you not ferule?
must he not ferule?
must we not ferule?
must you not ferule?
must they not ferule? 	must I not be feruling?
must you not be feruling?
must he not be feruling?
must we not be feruling?
must you not be feruling?
must they not be feruling? 	must I not have feruled?
must you not have feruled?
must he not have feruled?
must we not have feruled?
must you not have feruled?
must they not have feruled? 	must I not have been feruling?
must you not have been feruling?
must he not have been feruling?
must we not have been feruling?
must you not have been feruling?
must they not have been feruling?