must captain
Verbo regular: captain - captained- captained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must captain
you must captain
he must captain
we must captain
you must captain
they must captain 	I must be captaining
you must be captaining
he must be captaining
we must be captaining
you must be captaining
they must be captaining	I must have captained
you must have captained
he must have captained
we must have captained
you must have captained
they must have captained	I must have been captaining
you must have been captaining
he must have been captaining
we must have been captaining
you must have been captaining
they must have been captaining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't captain
you mustn't captain
he mustn't captain
we mustn't captain
you mustn't captain
they mustn't captain 	I mustn't be captaining
you mustn't be captaining
he mustn't be captaining
we mustn't be captaining
you mustn't be captaining
they mustn't be captaining	I mustn't have captained
you mustn't have captained
he mustn't have captained
we mustn't have captained
you mustn't have captained
they mustn't have captained	I mustn't have been captaining
you mustn't have been captaining
he mustn't have been captaining
we mustn't have been captaining
you mustn't have been captaining
they mustn't have been captaining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I captain?
must you captain?
must he captain?
must we captain?
must you captain?
must they captain? 	must I be captaining?
must you be captaining?
must he be captaining?
must we be captaining?
must you be captaining?
must they be captaining? 	must I have captained?
must you have captained?
must he have captained?
must we have captained?
must you have captained?
must they have captained? 	must I have been captaining?
must you have been captaining?
must he have been captaining?
must we have been captaining?
must you have been captaining?
must they have been captaining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I captain?
mustn't you captain?
mustn't he captain?
mustn't we captain?
mustn't you captain?
mustn't they captain? 	mustn't I be captaining?
mustn't you be captaining?
mustn't he be captaining?
mustn't we be captaining?
mustn't you be captaining?
mustn't they be captaining? 	mustn't I have captained?
mustn't you have captained?
mustn't he have captained?
mustn't we have captained?
mustn't you have captained?
mustn't they have captained? 	mustn't I have been captaining?
mustn't you have been captaining?
mustn't he have been captaining?
mustn't we have been captaining?
mustn't you have been captaining?
mustn't they have been captaining?