ought to extract
Regular verb: extract - extracted- extracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to extract
you ought to extract
she ought to extract
we ought to extract
you ought to extract
they ought to extract 	I ought to be extracting
you ought to be extracting
she ought to be extracting
we ought to be extracting
you ought to be extracting
they ought to be extracting	I ought to have extracted
you ought to have extracted
she ought to have extracted
we ought to have extracted
you ought to have extracted
they ought to have extracted	I ought to have been extracting
you ought to have been extracting
she ought to have been extracting
we ought to have been extracting
you ought to have been extracting
they ought to have been extracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to extract
you oughtn't to extract
she oughtn't to extract
we oughtn't to extract
you oughtn't to extract
they oughtn't to extract 	I oughtn't to be extracting
you oughtn't to be extracting
she oughtn't to be extracting
we oughtn't to be extracting
you oughtn't to be extracting
they oughtn't to be extracting	I oughtn't to have extracted
you oughtn't to have extracted
she oughtn't to have extracted
we oughtn't to have extracted
you oughtn't to have extracted
they oughtn't to have extracted	I oughtn't to have been extracting
you oughtn't to have been extracting
she oughtn't to have been extracting
we oughtn't to have been extracting
you oughtn't to have been extracting
they oughtn't to have been extracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I extract?
ought to you extract?
ought to she extract?
ought to we extract?
ought to you extract?
ought to they extract? 	ought to I be extracting?
ought to you be extracting?
ought to she be extracting?
ought to we be extracting?
ought to you be extracting?
ought to they be extracting? 	ought to I have extracted?
ought to you have extracted?
ought to she have extracted?
ought to we have extracted?
ought to you have extracted?
ought to they have extracted? 	ought to I have been extracting?
ought to you have been extracting?
ought to she have been extracting?
ought to we have been extracting?
ought to you have been extracting?
ought to they have been extracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to extract?
oughtn't you to extract?
oughtn't she to extract?
oughtn't we to extract?
oughtn't you to extract?
oughtn't they to extract? 	oughtn't I to be extracting?
oughtn't you to be extracting?
oughtn't she to be extracting?
oughtn't we to be extracting?
oughtn't you to be extracting?
oughtn't they to be extracting? 	oughtn't I to have extracted?
oughtn't you to have extracted?
oughtn't she to have extracted?
oughtn't we to have extracted?
oughtn't you to have extracted?
oughtn't they to have extracted? 	oughtn't I to have been extracting?
oughtn't you to have been extracting?
oughtn't she to have been extracting?
oughtn't we to have been extracting?
oughtn't you to have been extracting?
oughtn't they to have been extracting?