English verb conjugation
OUGHT TO DIFFERENTIATE

Regular verb: differentiate - differentiated - differentiated

Affirmation

Simple form	V-ing form
I ought to differentiate you ought to differentiate she ought to differentiate we ought to differentiate you ought to differentiate they ought to differentiate	I ought to be differentiating you ought to be differentiating she ought to be differentiating we ought to be differentiating you ought to be differentiating they ought to be differentiating
Perfect	V-ing perfect
I ought to have differentiated you ought to have differentiated she ought to have differentiated we ought to have differentiated you ought to have differentiated they ought to have differentiated	I ought to have been differentiating you ought to have been differentiating she ought to have been differentiating we ought to have been differentiating you ought to have been differentiating they ought to have been differentiating

Negation

Simple form	V-ing form
I oughtn't to differentiate you oughtn't to differentiate she oughtn't to differentiate we oughtn't to differentiate you oughtn't to differentiate they oughtn't to differentiate	I oughtn't to be differentiating you oughtn't to be differentiating she oughtn't to be differentiating we oughtn't to be differentiating you oughtn't to be differentiating they oughtn't to be differentiating
Perfect	V-ing perfect
I oughtn't to have differentiated you oughtn't to have differentiated she oughtn't to have differentiated we oughtn't to have differentiated you oughtn't to have differentiated they oughtn't to have differentiated	I oughtn't to have been differentiating you oughtn't to have been differentiating she oughtn't to have been differentiating we oughtn't to have been differentiating you oughtn't to have been differentiating they oughtn't to have been differentiating

Interrogative form

Simple form	V-ing form
ought to I differentiate? ought to you differentiate? ought to she differentiate? ought to we differentiate? ought to you differentiate? ought to they differentiate?	ought to I be differentiating? ought to you be differentiating? ought to she be differentiating? ought to we be differentiating? ought to you be differentiating? ought to they be differentiating?
Perfect	V-ing perfect
ought to I have differentiated? ought to you have differentiated? ought to she have differentiated? ought to we have differentiated? ought to you have differentiated? ought to they have differentiated?	ought to I have been differentiating? ought to you have been differentiating? ought to she have been differentiating? ought to we have been differentiating? ought to you have been differentiating? ought to they have been differentiating?

Interro-negative form

Simple form	V-ing form
oughtn't I to differentiate? oughtn't you to differentiate? oughtn't she to differentiate? oughtn't we to differentiate? oughtn't you to differentiate? oughtn't they to differentiate?	oughtn't I to be differentiating? oughtn't you to be differentiating? oughtn't she to be differentiating? oughtn't we to be differentiating? oughtn't you to be differentiating? oughtn't they to be differentiating?
Perfect	V-ing perfect
oughtn't I to have differentiated? oughtn't you to have differentiated? oughtn't she to have differentiated? oughtn't we to have differentiated? oughtn't you to have differentiated? oughtn't they to have differentiated?	oughtn't I to have been differentiating? oughtn't you to have been differentiating? oughtn't she to have been differentiating? oughtn't we to have been differentiating? oughtn't you to have been differentiating? oughtn't they to have been differentiating?