must windsurf
Verbo regular: windsurf - windsurfed- windsurfed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must windsurf
you must windsurf
she must windsurf
we must windsurf
you must windsurf
they must windsurf 	I must be windsurfing
you must be windsurfing
she must be windsurfing
we must be windsurfing
you must be windsurfing
they must be windsurfing	I must have windsurfed
you must have windsurfed
she must have windsurfed
we must have windsurfed
you must have windsurfed
they must have windsurfed	I must have been windsurfing
you must have been windsurfing
she must have been windsurfing
we must have been windsurfing
you must have been windsurfing
they must have been windsurfing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not windsurf
you must not windsurf
she must not windsurf
we must not windsurf
you must not windsurf
they must not windsurf 	I must not be windsurfing
you must not be windsurfing
she must not be windsurfing
we must not be windsurfing
you must not be windsurfing
they must not be windsurfing	I must not have windsurfed
you must not have windsurfed
she must not have windsurfed
we must not have windsurfed
you must not have windsurfed
they must not have windsurfed	I must not have been windsurfing
you must not have been windsurfing
she must not have been windsurfing
we must not have been windsurfing
you must not have been windsurfing
they must not have been windsurfing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I windsurf?
must you windsurf?
must she windsurf?
must we windsurf?
must you windsurf?
must they windsurf? 	must I be windsurfing?
must you be windsurfing?
must she be windsurfing?
must we be windsurfing?
must you be windsurfing?
must they be windsurfing? 	must I have windsurfed?
must you have windsurfed?
must she have windsurfed?
must we have windsurfed?
must you have windsurfed?
must they have windsurfed? 	must I have been windsurfing?
must you have been windsurfing?
must she have been windsurfing?
must we have been windsurfing?
must you have been windsurfing?
must they have been windsurfing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not windsurf?
must you not windsurf?
must she not windsurf?
must we not windsurf?
must you not windsurf?
must they not windsurf? 	must I not be windsurfing?
must you not be windsurfing?
must she not be windsurfing?
must we not be windsurfing?
must you not be windsurfing?
must they not be windsurfing? 	must I not have windsurfed?
must you not have windsurfed?
must she not have windsurfed?
must we not have windsurfed?
must you not have windsurfed?
must they not have windsurfed? 	must I not have been windsurfing?
must you not have been windsurfing?
must she not have been windsurfing?
must we not have been windsurfing?
must you not have been windsurfing?
must they not have been windsurfing?