ought to estimate
Regular verb: estimate - estimated- estimated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to estimate
you ought to estimate
she ought to estimate
we ought to estimate
you ought to estimate
they ought to estimate 	I ought to be estimating
you ought to be estimating
she ought to be estimating
we ought to be estimating
you ought to be estimating
they ought to be estimating	I ought to have estimated
you ought to have estimated
she ought to have estimated
we ought to have estimated
you ought to have estimated
they ought to have estimated	I ought to have been estimating
you ought to have been estimating
she ought to have been estimating
we ought to have been estimating
you ought to have been estimating
they ought to have been estimating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to estimate
you oughtn't to estimate
she oughtn't to estimate
we oughtn't to estimate
you oughtn't to estimate
they oughtn't to estimate 	I oughtn't to be estimating
you oughtn't to be estimating
she oughtn't to be estimating
we oughtn't to be estimating
you oughtn't to be estimating
they oughtn't to be estimating	I oughtn't to have estimated
you oughtn't to have estimated
she oughtn't to have estimated
we oughtn't to have estimated
you oughtn't to have estimated
they oughtn't to have estimated	I oughtn't to have been estimating
you oughtn't to have been estimating
she oughtn't to have been estimating
we oughtn't to have been estimating
you oughtn't to have been estimating
they oughtn't to have been estimating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I estimate?
ought to you estimate?
ought to she estimate?
ought to we estimate?
ought to you estimate?
ought to they estimate? 	ought to I be estimating?
ought to you be estimating?
ought to she be estimating?
ought to we be estimating?
ought to you be estimating?
ought to they be estimating? 	ought to I have estimated?
ought to you have estimated?
ought to she have estimated?
ought to we have estimated?
ought to you have estimated?
ought to they have estimated? 	ought to I have been estimating?
ought to you have been estimating?
ought to she have been estimating?
ought to we have been estimating?
ought to you have been estimating?
ought to they have been estimating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to estimate?
oughtn't you to estimate?
oughtn't she to estimate?
oughtn't we to estimate?
oughtn't you to estimate?
oughtn't they to estimate? 	oughtn't I to be estimating?
oughtn't you to be estimating?
oughtn't she to be estimating?
oughtn't we to be estimating?
oughtn't you to be estimating?
oughtn't they to be estimating? 	oughtn't I to have estimated?
oughtn't you to have estimated?
oughtn't she to have estimated?
oughtn't we to have estimated?
oughtn't you to have estimated?
oughtn't they to have estimated? 	oughtn't I to have been estimating?
oughtn't you to have been estimating?
oughtn't she to have been estimating?
oughtn't we to have been estimating?
oughtn't you to have been estimating?
oughtn't they to have been estimating?