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 ought not to rarefy you ought not to rarefy he ought not to rarefy we ought not to rarefy you ought not to rarefy they ought not to rarefy	I ought not to rarefying you ought not to rarefying he ought not to rarefying we ought not to rarefying you ought not to rarefying they ought not to rarefying
Perfect	V-ing perfect
I ought not to have rarefied you ought not to have rarefied he ought not to have rarefied we ought not to have rarefied you ought not to have rarefied they ought not to have rarefied	I ought not to have been rarefying you ought not to have been rarefying he ought not to have been rarefying we ought not to have been rarefying you ought not to have been rarefying they ought not 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
ought I not to rarefy? ought you not to rarefy? ought he not to rarefy? ought we not to rarefy? ought you not to rarefy? ought they not to rarefy?	ought I not to be rarefying? ought you not to be rarefying? ought he not to be rarefying? ought we not to be rarefying? ought you not to be rarefying? ought they not to be rarefying?
Perfect	V-ing perfect
ought I not to have rarefied? ought you not to have rarefied? ought he not to have rarefied? ought we not to have rarefied? ought you not to have rarefied? ought they not to have rarefied?	ought I not to have been rarefying? ought you not to have been rarefying? ought he not to have been rarefying? ought we not to have been rarefying? ought you not to have been rarefying? ought they not to have been rarefying?