must comment
Verbo regular: comment - commented- commented

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must comment
you must comment
she must comment
we must comment
you must comment
they must comment 	I must be commenting
you must be commenting
she must be commenting
we must be commenting
you must be commenting
they must be commenting	I must have commented
you must have commented
she must have commented
we must have commented
you must have commented
they must have commented	I must have been commenting
you must have been commenting
she must have been commenting
we must have been commenting
you must have been commenting
they must have been commenting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't comment
you mustn't comment
she mustn't comment
we mustn't comment
you mustn't comment
they mustn't comment 	I mustn't be commenting
you mustn't be commenting
she mustn't be commenting
we mustn't be commenting
you mustn't be commenting
they mustn't be commenting	I mustn't have commented
you mustn't have commented
she mustn't have commented
we mustn't have commented
you mustn't have commented
they mustn't have commented	I mustn't have been commenting
you mustn't have been commenting
she mustn't have been commenting
we mustn't have been commenting
you mustn't have been commenting
they mustn't have been commenting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I comment?
must you comment?
must she comment?
must we comment?
must you comment?
must they comment? 	must I be commenting?
must you be commenting?
must she be commenting?
must we be commenting?
must you be commenting?
must they be commenting? 	must I have commented?
must you have commented?
must she have commented?
must we have commented?
must you have commented?
must they have commented? 	must I have been commenting?
must you have been commenting?
must she have been commenting?
must we have been commenting?
must you have been commenting?
must they have been commenting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I comment?
mustn't you comment?
mustn't she comment?
mustn't we comment?
mustn't you comment?
mustn't they comment? 	mustn't I be commenting?
mustn't you be commenting?
mustn't she be commenting?
mustn't we be commenting?
mustn't you be commenting?
mustn't they be commenting? 	mustn't I have commented?
mustn't you have commented?
mustn't she have commented?
mustn't we have commented?
mustn't you have commented?
mustn't they have commented? 	mustn't I have been commenting?
mustn't you have been commenting?
mustn't she have been commenting?
mustn't we have been commenting?
mustn't you have been commenting?
mustn't they have been commenting?