must kill
Verbo regular: kill - killed- killed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must kill
you must kill
she must kill
we must kill
you must kill
they must kill 	I must be killing
you must be killing
she must be killing
we must be killing
you must be killing
they must be killing	I must have killed
you must have killed
she must have killed
we must have killed
you must have killed
they must have killed	I must have been killing
you must have been killing
she must have been killing
we must have been killing
you must have been killing
they must have been killing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't kill
you mustn't kill
she mustn't kill
we mustn't kill
you mustn't kill
they mustn't kill 	I mustn't be killing
you mustn't be killing
she mustn't be killing
we mustn't be killing
you mustn't be killing
they mustn't be killing	I mustn't have killed
you mustn't have killed
she mustn't have killed
we mustn't have killed
you mustn't have killed
they mustn't have killed	I mustn't have been killing
you mustn't have been killing
she mustn't have been killing
we mustn't have been killing
you mustn't have been killing
they mustn't have been killing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I kill?
must you kill?
must she kill?
must we kill?
must you kill?
must they kill? 	must I be killing?
must you be killing?
must she be killing?
must we be killing?
must you be killing?
must they be killing? 	must I have killed?
must you have killed?
must she have killed?
must we have killed?
must you have killed?
must they have killed? 	must I have been killing?
must you have been killing?
must she have been killing?
must we have been killing?
must you have been killing?
must they have been killing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I kill?
mustn't you kill?
mustn't she kill?
mustn't we kill?
mustn't you kill?
mustn't they kill? 	mustn't I be killing?
mustn't you be killing?
mustn't she be killing?
mustn't we be killing?
mustn't you be killing?
mustn't they be killing? 	mustn't I have killed?
mustn't you have killed?
mustn't she have killed?
mustn't we have killed?
mustn't you have killed?
mustn't they have killed? 	mustn't I have been killing?
mustn't you have been killing?
mustn't she have been killing?
mustn't we have been killing?
mustn't you have been killing?
mustn't they have been killing?