English verb conjugation
OUGHT TO MULTIPLY

Regular verb: multiply - multiplied - multiplied

Affirmation

Simple form	V-ing form
I ought to multiply you ought to multiply he ought to multiply we ought to multiply you ought to multiply they ought to multiply	I ought to be multiplying you ought to be multiplying he ought to be multiplying we ought to be multiplying you ought to be multiplying they ought to be multiplying
Perfect	V-ing perfect
I ought to have multiplied you ought to have multiplied he ought to have multiplied we ought to have multiplied you ought to have multiplied they ought to have multiplied	I ought to have been multiplying you ought to have been multiplying he ought to have been multiplying we ought to have been multiplying you ought to have been multiplying they ought to have been multiplying

Negation

Simple form	V-ing form
I oughtn't to multiply you oughtn't to multiply he oughtn't to multiply we oughtn't to multiply you oughtn't to multiply they oughtn't to multiply	I oughtn't to be multiplying you oughtn't to be multiplying he oughtn't to be multiplying we oughtn't to be multiplying you oughtn't to be multiplying they oughtn't to be multiplying
Perfect	V-ing perfect
I oughtn't to have multiplied you oughtn't to have multiplied he oughtn't to have multiplied we oughtn't to have multiplied you oughtn't to have multiplied they oughtn't to have multiplied	I oughtn't to have been multiplying you oughtn't to have been multiplying he oughtn't to have been multiplying we oughtn't to have been multiplying you oughtn't to have been multiplying they oughtn't to have been multiplying

Interrogative form

Simple form	V-ing form
ought to I multiply? ought to you multiply? ought to he multiply? ought to we multiply? ought to you multiply? ought to they multiply?	ought to I be multiplying? ought to you be multiplying? ought to he be multiplying? ought to we be multiplying? ought to you be multiplying? ought to they be multiplying?
Perfect	V-ing perfect
ought to I have multiplied? ought to you have multiplied? ought to he have multiplied? ought to we have multiplied? ought to you have multiplied? ought to they have multiplied?	ought to I have been multiplying? ought to you have been multiplying? ought to he have been multiplying? ought to we have been multiplying? ought to you have been multiplying? ought to they have been multiplying?

Interro-negative form

Simple form	V-ing form
oughtn't I to multiply? oughtn't you to multiply? oughtn't he to multiply? oughtn't we to multiply? oughtn't you to multiply? oughtn't they to multiply?	oughtn't I to be multiplying? oughtn't you to be multiplying? oughtn't he to be multiplying? oughtn't we to be multiplying? oughtn't you to be multiplying? oughtn't they to be multiplying?
Perfect	V-ing perfect
oughtn't I to have multiplied? oughtn't you to have multiplied? oughtn't he to have multiplied? oughtn't we to have multiplied? oughtn't you to have multiplied? oughtn't they to have multiplied?	oughtn't I to have been multiplying? oughtn't you to have been multiplying? oughtn't he to have been multiplying? oughtn't we to have been multiplying? oughtn't you to have been multiplying? oughtn't they to have been multiplying?