English verb conjugation
OUGHT TO RAREFY

Regular verb: rarefy - rarefied - rarefied

Affirmation

Simple form	V-ing form
I ought to rarefy you ought to rarefy he ought to rarefy we ought to rarefy you ought to rarefy they ought to rarefy	I ought to be rarefying you ought to be rarefying he ought to be rarefying we ought to be rarefying you ought to be rarefying they ought to be rarefying
Perfect	V-ing perfect
I ought to have rarefied you ought to have rarefied he ought to have rarefied we ought to have rarefied you ought to have rarefied they ought to have rarefied	I ought to have been rarefying you ought to have been rarefying he ought to have been rarefying we ought to have been rarefying you ought to have been rarefying they ought to have been rarefying

Negation

Simple form	V-ing form
I oughtn't to rarefy you oughtn't to rarefy he oughtn't to rarefy we oughtn't to rarefy you oughtn't to rarefy they oughtn't to rarefy	I oughtn't to be rarefying you oughtn't to be rarefying he oughtn't to be rarefying we oughtn't to be rarefying you oughtn't to be rarefying they oughtn't to be rarefying
Perfect	V-ing perfect
I oughtn't to have rarefied you oughtn't to have rarefied he oughtn't to have rarefied we oughtn't to have rarefied you oughtn't to have rarefied they oughtn't to have rarefied	I oughtn't to have been rarefying you oughtn't to have been rarefying he oughtn't to have been rarefying we oughtn't to have been rarefying you oughtn't to have been rarefying they oughtn't to have been rarefying

Interrogative form

Simple form	V-ing form
ought to I rarefy? ought to you rarefy? ought to he rarefy? ought to we rarefy? ought to you rarefy? ought to they rarefy?	ought to I be rarefying? ought to you be rarefying? ought to he be rarefying? ought to we be rarefying? ought to you be rarefying? ought to they be rarefying?
Perfect	V-ing perfect
ought to I have rarefied? ought to you have rarefied? ought to he have rarefied? ought to we have rarefied? ought to you have rarefied? ought to they have rarefied?	ought to I have been rarefying? ought to you have been rarefying? ought to he have been rarefying? ought to we have been rarefying? ought to you have been rarefying? ought to they have been rarefying?

Interro-negative form

Simple form	V-ing form
oughtn't I to rarefy? oughtn't you to rarefy? oughtn't he to rarefy? oughtn't we to rarefy? oughtn't you to rarefy? oughtn't they to rarefy?	oughtn't I to be rarefying? oughtn't you to be rarefying? oughtn't he to be rarefying? oughtn't we to be rarefying? oughtn't you to be rarefying? oughtn't they to be rarefying?
Perfect	V-ing perfect
oughtn't I to have rarefied? oughtn't you to have rarefied? oughtn't he to have rarefied? oughtn't we to have rarefied? oughtn't you to have rarefied? oughtn't they to have rarefied?	oughtn't I to have been rarefying? oughtn't you to have been rarefying? oughtn't he to have been rarefying? oughtn't we to have been rarefying? oughtn't you to have been rarefying? oughtn't they to have been rarefying?