English verb conjugation
OUGHT TO LENGTHEN

Regular verb: lengthen - lengthened - lengthened

Affirmation

Simple form	V-ing form
I ought to lengthen you ought to lengthen she ought to lengthen we ought to lengthen you ought to lengthen they ought to lengthen	I ought to be lengthening you ought to be lengthening she ought to be lengthening we ought to be lengthening you ought to be lengthening they ought to be lengthening
Perfect	V-ing perfect
I ought to have lengthened you ought to have lengthened she ought to have lengthened we ought to have lengthened you ought to have lengthened they ought to have lengthened	I ought to have been lengthening you ought to have been lengthening she ought to have been lengthening we ought to have been lengthening you ought to have been lengthening they ought to have been lengthening

Negation

Simple form	V-ing form
I ought not to lengthen you ought not to lengthen she ought not to lengthen we ought not to lengthen you ought not to lengthen they ought not to lengthen	I ought not to lengthening you ought not to lengthening she ought not to lengthening we ought not to lengthening you ought not to lengthening they ought not to lengthening
Perfect	V-ing perfect
I ought not to have lengthened you ought not to have lengthened she ought not to have lengthened we ought not to have lengthened you ought not to have lengthened they ought not to have lengthened	I ought not to have been lengthening you ought not to have been lengthening she ought not to have been lengthening we ought not to have been lengthening you ought not to have been lengthening they ought not to have been lengthening

Interrogative form

Simple form	V-ing form
ought to I lengthen? ought to you lengthen? ought to she lengthen? ought to we lengthen? ought to you lengthen? ought to they lengthen?	ought to I be lengthening? ought to you be lengthening? ought to she be lengthening? ought to we be lengthening? ought to you be lengthening? ought to they be lengthening?
Perfect	V-ing perfect
ought to I have lengthened? ought to you have lengthened? ought to she have lengthened? ought to we have lengthened? ought to you have lengthened? ought to they have lengthened?	ought to I have been lengthening? ought to you have been lengthening? ought to she have been lengthening? ought to we have been lengthening? ought to you have been lengthening? ought to they have been lengthening?

Interro-negative form

Simple form	V-ing form
ought I not to lengthen? ought you not to lengthen? ought she not to lengthen? ought we not to lengthen? ought you not to lengthen? ought they not to lengthen?	ought I not to be lengthening? ought you not to be lengthening? ought she not to be lengthening? ought we not to be lengthening? ought you not to be lengthening? ought they not to be lengthening?
Perfect	V-ing perfect
ought I not to have lengthened? ought you not to have lengthened? ought she not to have lengthened? ought we not to have lengthened? ought you not to have lengthened? ought they not to have lengthened?	ought I not to have been lengthening? ought you not to have been lengthening? ought she not to have been lengthening? ought we not to have been lengthening? ought you not to have been lengthening? ought they not to have been lengthening?