should attenuate
Regular verb: attenuate - attenuated- attenuated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd attenuate
you'd attenuate
he'd attenuate
we'd attenuate
you'd attenuate
they'd attenuate 	I'd be attenuating
you'd be attenuating
he'd be attenuating
we'd be attenuating
you'd be attenuating
they'd be attenuating	I should've attenuated
you should've attenuated
he should've attenuated
we should've attenuated
you should've attenuated
they should've attenuated	I should've been attenuating
you should've been attenuating
he should've been attenuating
we should've been attenuating
you should've been attenuating
they should've been attenuating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't attenuate
you shouldn't attenuate
he shouldn't attenuate
we shouldn't attenuate
you shouldn't attenuate
they shouldn't attenuate 	I shouldn't be attenuating
you shouldn't be attenuating
he shouldn't be attenuating
we shouldn't be attenuating
you shouldn't be attenuating
they shouldn't be attenuating	I shouldn't have attenuated
you shouldn't have attenuated
he shouldn't have attenuated
we shouldn't have attenuated
you shouldn't have attenuated
they shouldn't have attenuated	I shouldn't have been attenuating
you shouldn't have been attenuating
he shouldn't have been attenuating
we shouldn't have been attenuating
you shouldn't have been attenuating
they shouldn't have been attenuating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I attenuate?
should you attenuate?
should he attenuate?
should we attenuate?
should you attenuate?
should they attenuate? 	should I be attenuating?
should you be attenuating?
should he be attenuating?
should we be attenuating?
should you be attenuating?
should they be attenuating? 	should I have attenuated?
should you have attenuated?
should he have attenuated?
should we have attenuated?
should you have attenuated?
should they have attenuated? 	should I have been attenuating?
should you have been attenuating?
should he have been attenuating?
should we have been attenuating?
should you have been attenuating?
should they have been attenuating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I attenuate?
shouldn't you attenuate?
shouldn't he attenuate?
shouldn't we attenuate?
shouldn't you attenuate?
shouldn't they attenuate? 	shouldn't I be attenuating?
shouldn't you be attenuating?
shouldn't he be attenuating?
shouldn't we be attenuating?
shouldn't you be attenuating?
shouldn't they be attenuating? 	shouldn't I have attenuated?
shouldn't you have attenuated?
shouldn't he have attenuated?
shouldn't we have attenuated?
shouldn't you have attenuated?
shouldn't they have attenuated? 	shouldn't I have been attenuating?
shouldn't you have been attenuating?
shouldn't he have been attenuating?
shouldn't we have been attenuating?
shouldn't you have been attenuating?
shouldn't they have been attenuating?