English verb conjugation
OUGHT TO UNDERGIRD

Irregular verb: undergird - undergirt, undergirded - undergirt, undergirded

Affirmation

Simple form	V-ing form
I ought to undergird you ought to undergird she ought to undergird we ought to undergird you ought to undergird they ought to undergird	I ought to be undergirding you ought to be undergirding she ought to be undergirding we ought to be undergirding you ought to be undergirding they ought to be undergirding
Perfect	V-ing perfect
I ought to have undergirt, undergirded you ought to have undergirt, undergirded she ought to have undergirt, undergirded we ought to have undergirt, undergirded you ought to have undergirt, undergirded they ought to have undergirt, undergirded	I ought to have been undergirding you ought to have been undergirding she ought to have been undergirding we ought to have been undergirding you ought to have been undergirding they ought to have been undergirding

Negation

Simple form	V-ing form
I oughtn't to undergird you oughtn't to undergird she oughtn't to undergird we oughtn't to undergird you oughtn't to undergird they oughtn't to undergird	I oughtn't to be undergirding you oughtn't to be undergirding she oughtn't to be undergirding we oughtn't to be undergirding you oughtn't to be undergirding they oughtn't to be undergirding
Perfect	V-ing perfect
I oughtn't to have undergirt, undergirded you oughtn't to have undergirt, undergirded she oughtn't to have undergirt, undergirded we oughtn't to have undergirt, undergirded you oughtn't to have undergirt, undergirded they oughtn't to have undergirt, undergirded	I oughtn't to have been undergirding you oughtn't to have been undergirding she oughtn't to have been undergirding we oughtn't to have been undergirding you oughtn't to have been undergirding they oughtn't to have been undergirding

Interrogative form

Simple form	V-ing form
ought to I undergird? ought to you undergird? ought to she undergird? ought to we undergird? ought to you undergird? ought to they undergird?	ought to I be undergirding? ought to you be undergirding? ought to she be undergirding? ought to we be undergirding? ought to you be undergirding? ought to they be undergirding?
Perfect	V-ing perfect
ought to I have undergirt, undergirded? ought to you have undergirt, undergirded? ought to she have undergirt, undergirded? ought to we have undergirt, undergirded? ought to you have undergirt, undergirded? ought to they have undergirt, undergirded?	ought to I have been undergirding? ought to you have been undergirding? ought to she have been undergirding? ought to we have been undergirding? ought to you have been undergirding? ought to they have been undergirding?

Interro-negative form

Simple form	V-ing form
oughtn't I to undergird? oughtn't you to undergird? oughtn't she to undergird? oughtn't we to undergird? oughtn't you to undergird? oughtn't they to undergird?	oughtn't I to be undergirding? oughtn't you to be undergirding? oughtn't she to be undergirding? oughtn't we to be undergirding? oughtn't you to be undergirding? oughtn't they to be undergirding?
Perfect	V-ing perfect
oughtn't I to have undergirt, undergirded? oughtn't you to have undergirt, undergirded? oughtn't she to have undergirt, undergirded? oughtn't we to have undergirt, undergirded? oughtn't you to have undergirt, undergirded? oughtn't they to have undergirt, undergirded?	oughtn't I to have been undergirding? oughtn't you to have been undergirding? oughtn't she to have been undergirding? oughtn't we to have been undergirding? oughtn't you to have been undergirding? oughtn't they to have been undergirding?