should mutate
Regular verb: mutate - mutated- mutated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd mutate
you'd mutate
she'd mutate
we'd mutate
you'd mutate
they'd mutate 	I'd be mutating
you'd be mutating
she'd be mutating
we'd be mutating
you'd be mutating
they'd be mutating	I should've mutated
you should've mutated
she should've mutated
we should've mutated
you should've mutated
they should've mutated	I should've been mutating
you should've been mutating
she should've been mutating
we should've been mutating
you should've been mutating
they should've been mutating	

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

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

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