English verb conjugation
OUGHT TO PERISH

Regular verb: perish - perished - perished

Affirmation

Simple form	V-ing form
I ought to perish you ought to perish she ought to perish we ought to perish you ought to perish they ought to perish	I ought to be perishing you ought to be perishing she ought to be perishing we ought to be perishing you ought to be perishing they ought to be perishing
Perfect	V-ing perfect
I ought to have perished you ought to have perished she ought to have perished we ought to have perished you ought to have perished they ought to have perished	I ought to have been perishing you ought to have been perishing she ought to have been perishing we ought to have been perishing you ought to have been perishing they ought to have been perishing

Negation

Simple form	V-ing form
I oughtn't to perish you oughtn't to perish she oughtn't to perish we oughtn't to perish you oughtn't to perish they oughtn't to perish	I oughtn't to be perishing you oughtn't to be perishing she oughtn't to be perishing we oughtn't to be perishing you oughtn't to be perishing they oughtn't to be perishing
Perfect	V-ing perfect
I oughtn't to have perished you oughtn't to have perished she oughtn't to have perished we oughtn't to have perished you oughtn't to have perished they oughtn't to have perished	I oughtn't to have been perishing you oughtn't to have been perishing she oughtn't to have been perishing we oughtn't to have been perishing you oughtn't to have been perishing they oughtn't to have been perishing

Interrogative form

Simple form	V-ing form
ought to I perish? ought to you perish? ought to she perish? ought to we perish? ought to you perish? ought to they perish?	ought to I be perishing? ought to you be perishing? ought to she be perishing? ought to we be perishing? ought to you be perishing? ought to they be perishing?
Perfect	V-ing perfect
ought to I have perished? ought to you have perished? ought to she have perished? ought to we have perished? ought to you have perished? ought to they have perished?	ought to I have been perishing? ought to you have been perishing? ought to she have been perishing? ought to we have been perishing? ought to you have been perishing? ought to they have been perishing?

Interro-negative form

Simple form	V-ing form
oughtn't I to perish? oughtn't you to perish? oughtn't she to perish? oughtn't we to perish? oughtn't you to perish? oughtn't they to perish?	oughtn't I to be perishing? oughtn't you to be perishing? oughtn't she to be perishing? oughtn't we to be perishing? oughtn't you to be perishing? oughtn't they to be perishing?
Perfect	V-ing perfect
oughtn't I to have perished? oughtn't you to have perished? oughtn't she to have perished? oughtn't we to have perished? oughtn't you to have perished? oughtn't they to have perished?	oughtn't I to have been perishing? oughtn't you to have been perishing? oughtn't she to have been perishing? oughtn't we to have been perishing? oughtn't you to have been perishing? oughtn't they to have been perishing?