must surfboard
Verbo regular: surfboard - surfboarded- surfboarded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must surfboard
you must surfboard
he must surfboard
we must surfboard
you must surfboard
they must surfboard 	I must be surfboarding
you must be surfboarding
he must be surfboarding
we must be surfboarding
you must be surfboarding
they must be surfboarding	I must have surfboarded
you must have surfboarded
he must have surfboarded
we must have surfboarded
you must have surfboarded
they must have surfboarded	I must have been surfboarding
you must have been surfboarding
he must have been surfboarding
we must have been surfboarding
you must have been surfboarding
they must have been surfboarding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not surfboard
you must not surfboard
he must not surfboard
we must not surfboard
you must not surfboard
they must not surfboard 	I must not be surfboarding
you must not be surfboarding
he must not be surfboarding
we must not be surfboarding
you must not be surfboarding
they must not be surfboarding	I must not have surfboarded
you must not have surfboarded
he must not have surfboarded
we must not have surfboarded
you must not have surfboarded
they must not have surfboarded	I must not have been surfboarding
you must not have been surfboarding
he must not have been surfboarding
we must not have been surfboarding
you must not have been surfboarding
they must not have been surfboarding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I surfboard?
must you surfboard?
must he surfboard?
must we surfboard?
must you surfboard?
must they surfboard? 	must I be surfboarding?
must you be surfboarding?
must he be surfboarding?
must we be surfboarding?
must you be surfboarding?
must they be surfboarding? 	must I have surfboarded?
must you have surfboarded?
must he have surfboarded?
must we have surfboarded?
must you have surfboarded?
must they have surfboarded? 	must I have been surfboarding?
must you have been surfboarding?
must he have been surfboarding?
must we have been surfboarding?
must you have been surfboarding?
must they have been surfboarding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not surfboard?
must you not surfboard?
must he not surfboard?
must we not surfboard?
must you not surfboard?
must they not surfboard? 	must I not be surfboarding?
must you not be surfboarding?
must he not be surfboarding?
must we not be surfboarding?
must you not be surfboarding?
must they not be surfboarding? 	must I not have surfboarded?
must you not have surfboarded?
must he not have surfboarded?
must we not have surfboarded?
must you not have surfboarded?
must they not have surfboarded? 	must I not have been surfboarding?
must you not have been surfboarding?
must he not have been surfboarding?
must we not have been surfboarding?
must you not have been surfboarding?
must they not have been surfboarding?