English verb conjugation
OUGHT TO COMBINE

Regular verb: combine - combined - combined

Affirmation

Simple form	V-ing form
I ought to combine you ought to combine he ought to combine we ought to combine you ought to combine they ought to combine	I ought to be combining you ought to be combining he ought to be combining we ought to be combining you ought to be combining they ought to be combining
Perfect	V-ing perfect
I ought to have combined you ought to have combined he ought to have combined we ought to have combined you ought to have combined they ought to have combined	I ought to have been combining you ought to have been combining he ought to have been combining we ought to have been combining you ought to have been combining they ought to have been combining

Negation

Simple form	V-ing form
I ought not to combine you ought not to combine he ought not to combine we ought not to combine you ought not to combine they ought not to combine	I ought not to combining you ought not to combining he ought not to combining we ought not to combining you ought not to combining they ought not to combining
Perfect	V-ing perfect
I ought not to have combined you ought not to have combined he ought not to have combined we ought not to have combined you ought not to have combined they ought not to have combined	I ought not to have been combining you ought not to have been combining he ought not to have been combining we ought not to have been combining you ought not to have been combining they ought not to have been combining

Interrogative form

Simple form	V-ing form
ought to I combine? ought to you combine? ought to he combine? ought to we combine? ought to you combine? ought to they combine?	ought to I be combining? ought to you be combining? ought to he be combining? ought to we be combining? ought to you be combining? ought to they be combining?
Perfect	V-ing perfect
ought to I have combined? ought to you have combined? ought to he have combined? ought to we have combined? ought to you have combined? ought to they have combined?	ought to I have been combining? ought to you have been combining? ought to he have been combining? ought to we have been combining? ought to you have been combining? ought to they have been combining?

Interro-negative form

Simple form	V-ing form
ought I not to combine? ought you not to combine? ought he not to combine? ought we not to combine? ought you not to combine? ought they not to combine?	ought I not to be combining? ought you not to be combining? ought he not to be combining? ought we not to be combining? ought you not to be combining? ought they not to be combining?
Perfect	V-ing perfect
ought I not to have combined? ought you not to have combined? ought he not to have combined? ought we not to have combined? ought you not to have combined? ought they not to have combined?	ought I not to have been combining? ought you not to have been combining? ought he not to have been combining? ought we not to have been combining? ought you not to have been combining? ought they not to have been combining?