English verb conjugation
OUGHT TO SUBSERVE

Regular verb: subserve - subserved - subserved

Affirmation

Simple form	V-ing form
I ought to subserve you ought to subserve she ought to subserve we ought to subserve you ought to subserve they ought to subserve	I ought to be subserving you ought to be subserving she ought to be subserving we ought to be subserving you ought to be subserving they ought to be subserving
Perfect	V-ing perfect
I ought to have subserved you ought to have subserved she ought to have subserved we ought to have subserved you ought to have subserved they ought to have subserved	I ought to have been subserving you ought to have been subserving she ought to have been subserving we ought to have been subserving you ought to have been subserving they ought to have been subserving

Negation

Simple form	V-ing form
I oughtn't to subserve you oughtn't to subserve she oughtn't to subserve we oughtn't to subserve you oughtn't to subserve they oughtn't to subserve	I oughtn't to be subserving you oughtn't to be subserving she oughtn't to be subserving we oughtn't to be subserving you oughtn't to be subserving they oughtn't to be subserving
Perfect	V-ing perfect
I oughtn't to have subserved you oughtn't to have subserved she oughtn't to have subserved we oughtn't to have subserved you oughtn't to have subserved they oughtn't to have subserved	I oughtn't to have been subserving you oughtn't to have been subserving she oughtn't to have been subserving we oughtn't to have been subserving you oughtn't to have been subserving they oughtn't to have been subserving

Interrogative form

Simple form	V-ing form
ought to I subserve? ought to you subserve? ought to she subserve? ought to we subserve? ought to you subserve? ought to they subserve?	ought to I be subserving? ought to you be subserving? ought to she be subserving? ought to we be subserving? ought to you be subserving? ought to they be subserving?
Perfect	V-ing perfect
ought to I have subserved? ought to you have subserved? ought to she have subserved? ought to we have subserved? ought to you have subserved? ought to they have subserved?	ought to I have been subserving? ought to you have been subserving? ought to she have been subserving? ought to we have been subserving? ought to you have been subserving? ought to they have been subserving?

Interro-negative form

Simple form	V-ing form
oughtn't I to subserve? oughtn't you to subserve? oughtn't she to subserve? oughtn't we to subserve? oughtn't you to subserve? oughtn't they to subserve?	oughtn't I to be subserving? oughtn't you to be subserving? oughtn't she to be subserving? oughtn't we to be subserving? oughtn't you to be subserving? oughtn't they to be subserving?
Perfect	V-ing perfect
oughtn't I to have subserved? oughtn't you to have subserved? oughtn't she to have subserved? oughtn't we to have subserved? oughtn't you to have subserved? oughtn't they to have subserved?	oughtn't I to have been subserving? oughtn't you to have been subserving? oughtn't she to have been subserving? oughtn't we to have been subserving? oughtn't you to have been subserving? oughtn't they to have been subserving?