English verb conjugation
OUGHT TO UNDERSELL

Irregular verb: undersell - undersold - undersold

Affirmation

Simple form	V-ing form
I ought to undersell you ought to undersell he ought to undersell we ought to undersell you ought to undersell they ought to undersell	I ought to be underselling you ought to be underselling he ought to be underselling we ought to be underselling you ought to be underselling they ought to be underselling
Perfect	V-ing perfect
I ought to have undersold you ought to have undersold he ought to have undersold we ought to have undersold you ought to have undersold they ought to have undersold	I ought to have been underselling you ought to have been underselling he ought to have been underselling we ought to have been underselling you ought to have been underselling they ought to have been underselling

Negation

Simple form	V-ing form
I ought not to undersell you ought not to undersell he ought not to undersell we ought not to undersell you ought not to undersell they ought not to undersell	I ought not to underselling you ought not to underselling he ought not to underselling we ought not to underselling you ought not to underselling they ought not to underselling
Perfect	V-ing perfect
I ought not to have undersold you ought not to have undersold he ought not to have undersold we ought not to have undersold you ought not to have undersold they ought not to have undersold	I ought not to have been underselling you ought not to have been underselling he ought not to have been underselling we ought not to have been underselling you ought not to have been underselling they ought not to have been underselling

Interrogative form

Simple form	V-ing form
ought to I undersell? ought to you undersell? ought to he undersell? ought to we undersell? ought to you undersell? ought to they undersell?	ought to I be underselling? ought to you be underselling? ought to he be underselling? ought to we be underselling? ought to you be underselling? ought to they be underselling?
Perfect	V-ing perfect
ought to I have undersold? ought to you have undersold? ought to he have undersold? ought to we have undersold? ought to you have undersold? ought to they have undersold?	ought to I have been underselling? ought to you have been underselling? ought to he have been underselling? ought to we have been underselling? ought to you have been underselling? ought to they have been underselling?

Interro-negative form

Simple form	V-ing form
ought I not to undersell? ought you not to undersell? ought he not to undersell? ought we not to undersell? ought you not to undersell? ought they not to undersell?	ought I not to be underselling? ought you not to be underselling? ought he not to be underselling? ought we not to be underselling? ought you not to be underselling? ought they not to be underselling?
Perfect	V-ing perfect
ought I not to have undersold? ought you not to have undersold? ought he not to have undersold? ought we not to have undersold? ought you not to have undersold? ought they not to have undersold?	ought I not to have been underselling? ought you not to have been underselling? ought he not to have been underselling? ought we not to have been underselling? ought you not to have been underselling? ought they not to have been underselling?