must mutate
Regular verb: mutate - mutated- mutated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must mutate
you must mutate
she must mutate
we must mutate
you must mutate
they must mutate 	I must be mutating
you must be mutating
she must be mutating
we must be mutating
you must be mutating
they must be mutating	I must have mutated
you must have mutated
she 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
she must have been mutating
we must have been mutating
you must have been mutating
they must have been mutating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't mutate
you mustn't mutate
she 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
she 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
she 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
she mustn't have been mutating
we mustn't have been mutating
you mustn't have been mutating
they mustn't have been mutating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I mutate?
must you mutate?
must she mutate?
must we mutate?
must you mutate?
must they mutate? 	must I be mutating?
must you be mutating?
must she be mutating?
must we be mutating?
must you be mutating?
must they be mutating? 	must I have mutated?
must you have mutated?
must she 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 she have been mutating?
must we have been mutating?
must you have been mutating?
must they have been mutating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I mutate?
mustn't you mutate?
mustn't she 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 she 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 she 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 she have been mutating?
mustn't we have been mutating?
mustn't you have been mutating?
mustn't they have been mutating?