English verb conjugation
OUGHT TO QUACK

Regular verb: quack - quacked - quacked

Affirmation

Simple form	V-ing form
I ought to quack you ought to quack she ought to quack we ought to quack you ought to quack they ought to quack	I ought to be quacking you ought to be quacking she ought to be quacking we ought to be quacking you ought to be quacking they ought to be quacking
Perfect	V-ing perfect
I ought to have quacked you ought to have quacked she ought to have quacked we ought to have quacked you ought to have quacked they ought to have quacked	I ought to have been quacking you ought to have been quacking she ought to have been quacking we ought to have been quacking you ought to have been quacking they ought to have been quacking

Negation

Simple form	V-ing form
I ought not to quack you ought not to quack she ought not to quack we ought not to quack you ought not to quack they ought not to quack	I ought not to quacking you ought not to quacking she ought not to quacking we ought not to quacking you ought not to quacking they ought not to quacking
Perfect	V-ing perfect
I ought not to have quacked you ought not to have quacked she ought not to have quacked we ought not to have quacked you ought not to have quacked they ought not to have quacked	I ought not to have been quacking you ought not to have been quacking she ought not to have been quacking we ought not to have been quacking you ought not to have been quacking they ought not to have been quacking

Interrogative form

Simple form	V-ing form
ought to I quack? ought to you quack? ought to she quack? ought to we quack? ought to you quack? ought to they quack?	ought to I be quacking? ought to you be quacking? ought to she be quacking? ought to we be quacking? ought to you be quacking? ought to they be quacking?
Perfect	V-ing perfect
ought to I have quacked? ought to you have quacked? ought to she have quacked? ought to we have quacked? ought to you have quacked? ought to they have quacked?	ought to I have been quacking? ought to you have been quacking? ought to she have been quacking? ought to we have been quacking? ought to you have been quacking? ought to they have been quacking?

Interro-negative form

Simple form	V-ing form
ought I not to quack? ought you not to quack? ought she not to quack? ought we not to quack? ought you not to quack? ought they not to quack?	ought I not to be quacking? ought you not to be quacking? ought she not to be quacking? ought we not to be quacking? ought you not to be quacking? ought they not to be quacking?
Perfect	V-ing perfect
ought I not to have quacked? ought you not to have quacked? ought she not to have quacked? ought we not to have quacked? ought you not to have quacked? ought they not to have quacked?	ought I not to have been quacking? ought you not to have been quacking? ought she not to have been quacking? ought we not to have been quacking? ought you not to have been quacking? ought they not to have been quacking?