must massacre
Verbo regular: massacre - massacred- massacred

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must massacre
you must massacre
he must massacre
we must massacre
you must massacre
they must massacre 	I must be massacring
you must be massacring
he must be massacring
we must be massacring
you must be massacring
they must be massacring	I must have massacred
you must have massacred
he must have massacred
we must have massacred
you must have massacred
they must have massacred	I must have been massacring
you must have been massacring
he must have been massacring
we must have been massacring
you must have been massacring
they must have been massacring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't massacre
you mustn't massacre
he mustn't massacre
we mustn't massacre
you mustn't massacre
they mustn't massacre 	I mustn't be massacring
you mustn't be massacring
he mustn't be massacring
we mustn't be massacring
you mustn't be massacring
they mustn't be massacring	I mustn't have massacred
you mustn't have massacred
he mustn't have massacred
we mustn't have massacred
you mustn't have massacred
they mustn't have massacred	I mustn't have been massacring
you mustn't have been massacring
he mustn't have been massacring
we mustn't have been massacring
you mustn't have been massacring
they mustn't have been massacring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I massacre?
must you massacre?
must he massacre?
must we massacre?
must you massacre?
must they massacre? 	must I be massacring?
must you be massacring?
must he be massacring?
must we be massacring?
must you be massacring?
must they be massacring? 	must I have massacred?
must you have massacred?
must he have massacred?
must we have massacred?
must you have massacred?
must they have massacred? 	must I have been massacring?
must you have been massacring?
must he have been massacring?
must we have been massacring?
must you have been massacring?
must they have been massacring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I massacre?
mustn't you massacre?
mustn't he massacre?
mustn't we massacre?
mustn't you massacre?
mustn't they massacre? 	mustn't I be massacring?
mustn't you be massacring?
mustn't he be massacring?
mustn't we be massacring?
mustn't you be massacring?
mustn't they be massacring? 	mustn't I have massacred?
mustn't you have massacred?
mustn't he have massacred?
mustn't we have massacred?
mustn't you have massacred?
mustn't they have massacred? 	mustn't I have been massacring?
mustn't you have been massacring?
mustn't he have been massacring?
mustn't we have been massacring?
mustn't you have been massacring?
mustn't they have been massacring?