English verb conjugation
OUGHT TO UNDERDRESS

Regular verb: underdress - underdressed - underdressed

Affirmation

Simple form	V-ing form
I ought to underdress you ought to underdress he ought to underdress we ought to underdress you ought to underdress they ought to underdress	I ought to be underdressing you ought to be underdressing he ought to be underdressing we ought to be underdressing you ought to be underdressing they ought to be underdressing
Perfect	V-ing perfect
I ought to have underdressed you ought to have underdressed he ought to have underdressed we ought to have underdressed you ought to have underdressed they ought to have underdressed	I ought to have been underdressing you ought to have been underdressing he ought to have been underdressing we ought to have been underdressing you ought to have been underdressing they ought to have been underdressing

Negation

Simple form	V-ing form
I ought not to underdress you ought not to underdress he ought not to underdress we ought not to underdress you ought not to underdress they ought not to underdress	I ought not to underdressing you ought not to underdressing he ought not to underdressing we ought not to underdressing you ought not to underdressing they ought not to underdressing
Perfect	V-ing perfect
I ought not to have underdressed you ought not to have underdressed he ought not to have underdressed we ought not to have underdressed you ought not to have underdressed they ought not to have underdressed	I ought not to have been underdressing you ought not to have been underdressing he ought not to have been underdressing we ought not to have been underdressing you ought not to have been underdressing they ought not to have been underdressing

Interrogative form

Simple form	V-ing form
ought to I underdress? ought to you underdress? ought to he underdress? ought to we underdress? ought to you underdress? ought to they underdress?	ought to I be underdressing? ought to you be underdressing? ought to he be underdressing? ought to we be underdressing? ought to you be underdressing? ought to they be underdressing?
Perfect	V-ing perfect
ought to I have underdressed? ought to you have underdressed? ought to he have underdressed? ought to we have underdressed? ought to you have underdressed? ought to they have underdressed?	ought to I have been underdressing? ought to you have been underdressing? ought to he have been underdressing? ought to we have been underdressing? ought to you have been underdressing? ought to they have been underdressing?

Interro-negative form

Simple form	V-ing form
ought I not to underdress? ought you not to underdress? ought he not to underdress? ought we not to underdress? ought you not to underdress? ought they not to underdress?	ought I not to be underdressing? ought you not to be underdressing? ought he not to be underdressing? ought we not to be underdressing? ought you not to be underdressing? ought they not to be underdressing?
Perfect	V-ing perfect
ought I not to have underdressed? ought you not to have underdressed? ought he not to have underdressed? ought we not to have underdressed? ought you not to have underdressed? ought they not to have underdressed?	ought I not to have been underdressing? ought you not to have been underdressing? ought he not to have been underdressing? ought we not to have been underdressing? ought you not to have been underdressing? ought they not to have been underdressing?