must fox
Verbo regular: fox - foxed- foxed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fox
you must fox
he must fox
we must fox
you must fox
they must fox 	I must be foxing
you must be foxing
he must be foxing
we must be foxing
you must be foxing
they must be foxing	I must have foxed
you must have foxed
he must have foxed
we must have foxed
you must have foxed
they must have foxed	I must have been foxing
you must have been foxing
he must have been foxing
we must have been foxing
you must have been foxing
they must have been foxing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not fox
you must not fox
he must not fox
we must not fox
you must not fox
they must not fox 	I must not be foxing
you must not be foxing
he must not be foxing
we must not be foxing
you must not be foxing
they must not be foxing	I must not have foxed
you must not have foxed
he must not have foxed
we must not have foxed
you must not have foxed
they must not have foxed	I must not have been foxing
you must not have been foxing
he must not have been foxing
we must not have been foxing
you must not have been foxing
they must not have been foxing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fox?
must you fox?
must he fox?
must we fox?
must you fox?
must they fox? 	must I be foxing?
must you be foxing?
must he be foxing?
must we be foxing?
must you be foxing?
must they be foxing? 	must I have foxed?
must you have foxed?
must he have foxed?
must we have foxed?
must you have foxed?
must they have foxed? 	must I have been foxing?
must you have been foxing?
must he have been foxing?
must we have been foxing?
must you have been foxing?
must they have been foxing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not fox?
must you not fox?
must he not fox?
must we not fox?
must you not fox?
must they not fox? 	must I not be foxing?
must you not be foxing?
must he not be foxing?
must we not be foxing?
must you not be foxing?
must they not be foxing? 	must I not have foxed?
must you not have foxed?
must he not have foxed?
must we not have foxed?
must you not have foxed?
must they not have foxed? 	must I not have been foxing?
must you not have been foxing?
must he not have been foxing?
must we not have been foxing?
must you not have been foxing?
must they not have been foxing?