must down
Verbo regular: down - downed- downed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must down
you must down
she must down
we must down
you must down
they must down 	I must be downing
you must be downing
she must be downing
we must be downing
you must be downing
they must be downing	I must have downed
you must have downed
she must have downed
we must have downed
you must have downed
they must have downed	I must have been downing
you must have been downing
she must have been downing
we must have been downing
you must have been downing
they must have been downing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not down
you must not down
she must not down
we must not down
you must not down
they must not down 	I must not be downing
you must not be downing
she must not be downing
we must not be downing
you must not be downing
they must not be downing	I must not have downed
you must not have downed
she must not have downed
we must not have downed
you must not have downed
they must not have downed	I must not have been downing
you must not have been downing
she must not have been downing
we must not have been downing
you must not have been downing
they must not have been downing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I down?
must you down?
must she down?
must we down?
must you down?
must they down? 	must I be downing?
must you be downing?
must she be downing?
must we be downing?
must you be downing?
must they be downing? 	must I have downed?
must you have downed?
must she have downed?
must we have downed?
must you have downed?
must they have downed? 	must I have been downing?
must you have been downing?
must she have been downing?
must we have been downing?
must you have been downing?
must they have been downing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not down?
must you not down?
must she not down?
must we not down?
must you not down?
must they not down? 	must I not be downing?
must you not be downing?
must she not be downing?
must we not be downing?
must you not be downing?
must they not be downing? 	must I not have downed?
must you not have downed?
must she not have downed?
must we not have downed?
must you not have downed?
must they not have downed? 	must I not have been downing?
must you not have been downing?
must she not have been downing?
must we not have been downing?
must you not have been downing?
must they not have been downing?