must still
Verbo regular: still - stilled- stilled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must still
you must still
he must still
we must still
you must still
they must still 	I must be stilling
you must be stilling
he must be stilling
we must be stilling
you must be stilling
they must be stilling	I must have stilled
you must have stilled
he must have stilled
we must have stilled
you must have stilled
they must have stilled	I must have been stilling
you must have been stilling
he must have been stilling
we must have been stilling
you must have been stilling
they must have been stilling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not still
you must not still
he must not still
we must not still
you must not still
they must not still 	I must not be stilling
you must not be stilling
he must not be stilling
we must not be stilling
you must not be stilling
they must not be stilling	I must not have stilled
you must not have stilled
he must not have stilled
we must not have stilled
you must not have stilled
they must not have stilled	I must not have been stilling
you must not have been stilling
he must not have been stilling
we must not have been stilling
you must not have been stilling
they must not have been stilling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I still?
must you still?
must he still?
must we still?
must you still?
must they still? 	must I be stilling?
must you be stilling?
must he be stilling?
must we be stilling?
must you be stilling?
must they be stilling? 	must I have stilled?
must you have stilled?
must he have stilled?
must we have stilled?
must you have stilled?
must they have stilled? 	must I have been stilling?
must you have been stilling?
must he have been stilling?
must we have been stilling?
must you have been stilling?
must they have been stilling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not still?
must you not still?
must he not still?
must we not still?
must you not still?
must they not still? 	must I not be stilling?
must you not be stilling?
must he not be stilling?
must we not be stilling?
must you not be stilling?
must they not be stilling? 	must I not have stilled?
must you not have stilled?
must he not have stilled?
must we not have stilled?
must you not have stilled?
must they not have stilled? 	must I not have been stilling?
must you not have been stilling?
must he not have been stilling?
must we not have been stilling?
must you not have been stilling?
must they not have been stilling?