English verb conjugation
OUGHT TO POISON

Regular verb: poison - poisoned - poisoned

Affirmation

Simple form	V-ing form
I ought to poison you ought to poison he ought to poison we ought to poison you ought to poison they ought to poison	I ought to be poisoning you ought to be poisoning he ought to be poisoning we ought to be poisoning you ought to be poisoning they ought to be poisoning
Perfect	V-ing perfect
I ought to have poisoned you ought to have poisoned he ought to have poisoned we ought to have poisoned you ought to have poisoned they ought to have poisoned	I ought to have been poisoning you ought to have been poisoning he ought to have been poisoning we ought to have been poisoning you ought to have been poisoning they ought to have been poisoning

Negation

Simple form	V-ing form
I oughtn't to poison you oughtn't to poison he oughtn't to poison we oughtn't to poison you oughtn't to poison they oughtn't to poison	I oughtn't to be poisoning you oughtn't to be poisoning he oughtn't to be poisoning we oughtn't to be poisoning you oughtn't to be poisoning they oughtn't to be poisoning
Perfect	V-ing perfect
I oughtn't to have poisoned you oughtn't to have poisoned he oughtn't to have poisoned we oughtn't to have poisoned you oughtn't to have poisoned they oughtn't to have poisoned	I oughtn't to have been poisoning you oughtn't to have been poisoning he oughtn't to have been poisoning we oughtn't to have been poisoning you oughtn't to have been poisoning they oughtn't to have been poisoning

Interrogative form

Simple form	V-ing form
ought to I poison? ought to you poison? ought to he poison? ought to we poison? ought to you poison? ought to they poison?	ought to I be poisoning? ought to you be poisoning? ought to he be poisoning? ought to we be poisoning? ought to you be poisoning? ought to they be poisoning?
Perfect	V-ing perfect
ought to I have poisoned? ought to you have poisoned? ought to he have poisoned? ought to we have poisoned? ought to you have poisoned? ought to they have poisoned?	ought to I have been poisoning? ought to you have been poisoning? ought to he have been poisoning? ought to we have been poisoning? ought to you have been poisoning? ought to they have been poisoning?

Interro-negative form

Simple form	V-ing form
oughtn't I to poison? oughtn't you to poison? oughtn't he to poison? oughtn't we to poison? oughtn't you to poison? oughtn't they to poison?	oughtn't I to be poisoning? oughtn't you to be poisoning? oughtn't he to be poisoning? oughtn't we to be poisoning? oughtn't you to be poisoning? oughtn't they to be poisoning?
Perfect	V-ing perfect
oughtn't I to have poisoned? oughtn't you to have poisoned? oughtn't he to have poisoned? oughtn't we to have poisoned? oughtn't you to have poisoned? oughtn't they to have poisoned?	oughtn't I to have been poisoning? oughtn't you to have been poisoning? oughtn't he to have been poisoning? oughtn't we to have been poisoning? oughtn't you to have been poisoning? oughtn't they to have been poisoning?