must frequent
Verbo regular: frequent - frequented- frequented

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must frequent
you must frequent
he must frequent
we must frequent
you must frequent
they must frequent 	I must be frequenting
you must be frequenting
he must be frequenting
we must be frequenting
you must be frequenting
they must be frequenting	I must have frequented
you must have frequented
he must have frequented
we must have frequented
you must have frequented
they must have frequented	I must have been frequenting
you must have been frequenting
he must have been frequenting
we must have been frequenting
you must have been frequenting
they must have been frequenting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not frequent
you must not frequent
he must not frequent
we must not frequent
you must not frequent
they must not frequent 	I must not be frequenting
you must not be frequenting
he must not be frequenting
we must not be frequenting
you must not be frequenting
they must not be frequenting	I must not have frequented
you must not have frequented
he must not have frequented
we must not have frequented
you must not have frequented
they must not have frequented	I must not have been frequenting
you must not have been frequenting
he must not have been frequenting
we must not have been frequenting
you must not have been frequenting
they must not have been frequenting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I frequent?
must you frequent?
must he frequent?
must we frequent?
must you frequent?
must they frequent? 	must I be frequenting?
must you be frequenting?
must he be frequenting?
must we be frequenting?
must you be frequenting?
must they be frequenting? 	must I have frequented?
must you have frequented?
must he have frequented?
must we have frequented?
must you have frequented?
must they have frequented? 	must I have been frequenting?
must you have been frequenting?
must he have been frequenting?
must we have been frequenting?
must you have been frequenting?
must they have been frequenting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not frequent?
must you not frequent?
must he not frequent?
must we not frequent?
must you not frequent?
must they not frequent? 	must I not be frequenting?
must you not be frequenting?
must he not be frequenting?
must we not be frequenting?
must you not be frequenting?
must they not be frequenting? 	must I not have frequented?
must you not have frequented?
must he not have frequented?
must we not have frequented?
must you not have frequented?
must they not have frequented? 	must I not have been frequenting?
must you not have been frequenting?
must he not have been frequenting?
must we not have been frequenting?
must you not have been frequenting?
must they not have been frequenting?