ought to attenuate
Regular verb: attenuate - attenuated- attenuated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to attenuate
you ought to attenuate
he ought to attenuate
we ought to attenuate
you ought to attenuate
they ought to attenuate 	I ought to be attenuating
you ought to be attenuating
he ought to be attenuating
we ought to be attenuating
you ought to be attenuating
they ought to be attenuating	I ought to have attenuated
you ought to have attenuated
he ought to have attenuated
we ought to have attenuated
you ought to have attenuated
they ought to have attenuated	I ought to have been attenuating
you ought to have been attenuating
he ought to have been attenuating
we ought to have been attenuating
you ought to have been attenuating
they ought to have been attenuating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to attenuate
you ought not to attenuate
he ought not to attenuate
we ought not to attenuate
you ought not to attenuate
they ought not to attenuate 	I ought not to attenuating
you ought not to attenuating
he ought not to attenuating
we ought not to attenuating
you ought not to attenuating
they ought not to attenuating	I ought not to have attenuated
you ought not to have attenuated
he ought not to have attenuated
we ought not to have attenuated
you ought not to have attenuated
they ought not to have attenuated	I ought not to have been attenuating
you ought not to have been attenuating
he ought not to have been attenuating
we ought not to have been attenuating
you ought not to have been attenuating
they ought not to have been attenuating	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to attenuate?
ought you not to attenuate?
ought he not to attenuate?
ought we not to attenuate?
ought you not to attenuate?
ought they not to attenuate? 	ought I not to be attenuating?
ought you not to be attenuating?
ought he not to be attenuating?
ought we not to be attenuating?
ought you not to be attenuating?
ought they not to be attenuating? 	ought I not to have attenuated?
ought you not to have attenuated?
ought he not to have attenuated?
ought we not to have attenuated?
ought you not to have attenuated?
ought they not to have attenuated? 	ought I not to have been attenuating?
ought you not to have been attenuating?
ought he not to have been attenuating?
ought we not to have been attenuating?
ought you not to have been attenuating?
ought they not to have been attenuating?