must mutate
Verbo regular: mutate - mutated- mutated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must mutate
you must mutate
he must mutate
we must mutate
you must mutate
they must mutate 	I must be mutating
you must be mutating
he must be mutating
we must be mutating
you must be mutating
they must be mutating	I must have mutated
you must have mutated
he must have mutated
we must have mutated
you must have mutated
they must have mutated	I must have been mutating
you must have been mutating
he must have been mutating
we must have been mutating
you must have been mutating
they must have been mutating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't mutate
you mustn't mutate
he mustn't mutate
we mustn't mutate
you mustn't mutate
they mustn't mutate 	I mustn't be mutating
you mustn't be mutating
he mustn't be mutating
we mustn't be mutating
you mustn't be mutating
they mustn't be mutating	I mustn't have mutated
you mustn't have mutated
he mustn't have mutated
we mustn't have mutated
you mustn't have mutated
they mustn't have mutated	I mustn't have been mutating
you mustn't have been mutating
he mustn't have been mutating
we mustn't have been mutating
you mustn't have been mutating
they mustn't have been mutating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I mutate?
must you mutate?
must he mutate?
must we mutate?
must you mutate?
must they mutate? 	must I be mutating?
must you be mutating?
must he be mutating?
must we be mutating?
must you be mutating?
must they be mutating? 	must I have mutated?
must you have mutated?
must he have mutated?
must we have mutated?
must you have mutated?
must they have mutated? 	must I have been mutating?
must you have been mutating?
must he have been mutating?
must we have been mutating?
must you have been mutating?
must they have been mutating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I mutate?
mustn't you mutate?
mustn't he mutate?
mustn't we mutate?
mustn't you mutate?
mustn't they mutate? 	mustn't I be mutating?
mustn't you be mutating?
mustn't he be mutating?
mustn't we be mutating?
mustn't you be mutating?
mustn't they be mutating? 	mustn't I have mutated?
mustn't you have mutated?
mustn't he have mutated?
mustn't we have mutated?
mustn't you have mutated?
mustn't they have mutated? 	mustn't I have been mutating?
mustn't you have been mutating?
mustn't he have been mutating?
mustn't we have been mutating?
mustn't you have been mutating?
mustn't they have been mutating?