English verb conjugation
OUGHT TO UNDERVALUE

Regular verb: undervalue - undervalued - undervalued

Affirmation

Simple form	V-ing form
I ought to undervalue you ought to undervalue he ought to undervalue we ought to undervalue you ought to undervalue they ought to undervalue	I ought to be undervaluing you ought to be undervaluing he ought to be undervaluing we ought to be undervaluing you ought to be undervaluing they ought to be undervaluing
Perfect	V-ing perfect
I ought to have undervalued you ought to have undervalued he ought to have undervalued we ought to have undervalued you ought to have undervalued they ought to have undervalued	I ought to have been undervaluing you ought to have been undervaluing he ought to have been undervaluing we ought to have been undervaluing you ought to have been undervaluing they ought to have been undervaluing

Negation

Simple form	V-ing form
I ought not to undervalue you ought not to undervalue he ought not to undervalue we ought not to undervalue you ought not to undervalue they ought not to undervalue	I ought not to undervaluing you ought not to undervaluing he ought not to undervaluing we ought not to undervaluing you ought not to undervaluing they ought not to undervaluing
Perfect	V-ing perfect
I ought not to have undervalued you ought not to have undervalued he ought not to have undervalued we ought not to have undervalued you ought not to have undervalued they ought not to have undervalued	I ought not to have been undervaluing you ought not to have been undervaluing he ought not to have been undervaluing we ought not to have been undervaluing you ought not to have been undervaluing they ought not to have been undervaluing

Interrogative form

Simple form	V-ing form
ought to I undervalue? ought to you undervalue? ought to he undervalue? ought to we undervalue? ought to you undervalue? ought to they undervalue?	ought to I be undervaluing? ought to you be undervaluing? ought to he be undervaluing? ought to we be undervaluing? ought to you be undervaluing? ought to they be undervaluing?
Perfect	V-ing perfect
ought to I have undervalued? ought to you have undervalued? ought to he have undervalued? ought to we have undervalued? ought to you have undervalued? ought to they have undervalued?	ought to I have been undervaluing? ought to you have been undervaluing? ought to he have been undervaluing? ought to we have been undervaluing? ought to you have been undervaluing? ought to they have been undervaluing?

Interro-negative form

Simple form	V-ing form
ought I not to undervalue? ought you not to undervalue? ought he not to undervalue? ought we not to undervalue? ought you not to undervalue? ought they not to undervalue?	ought I not to be undervaluing? ought you not to be undervaluing? ought he not to be undervaluing? ought we not to be undervaluing? ought you not to be undervaluing? ought they not to be undervaluing?
Perfect	V-ing perfect
ought I not to have undervalued? ought you not to have undervalued? ought he not to have undervalued? ought we not to have undervalued? ought you not to have undervalued? ought they not to have undervalued?	ought I not to have been undervaluing? ought you not to have been undervaluing? ought he not to have been undervaluing? ought we not to have been undervaluing? ought you not to have been undervaluing? ought they not to have been undervaluing?