English verb conjugation
OUGHT TO STAMP

Regular verb: stamp - stamped - stamped

Affirmation

Simple form	V-ing form
I ought to stamp you ought to stamp he ought to stamp we ought to stamp you ought to stamp they ought to stamp	I ought to be stamping you ought to be stamping he ought to be stamping we ought to be stamping you ought to be stamping they ought to be stamping
Perfect	V-ing perfect
I ought to have stamped you ought to have stamped he ought to have stamped we ought to have stamped you ought to have stamped they ought to have stamped	I ought to have been stamping you ought to have been stamping he ought to have been stamping we ought to have been stamping you ought to have been stamping they ought to have been stamping

Negation

Simple form	V-ing form
I ought not to stamp you ought not to stamp he ought not to stamp we ought not to stamp you ought not to stamp they ought not to stamp	I ought not to stamping you ought not to stamping he ought not to stamping we ought not to stamping you ought not to stamping they ought not to stamping
Perfect	V-ing perfect
I ought not to have stamped you ought not to have stamped he ought not to have stamped we ought not to have stamped you ought not to have stamped they ought not to have stamped	I ought not to have been stamping you ought not to have been stamping he ought not to have been stamping we ought not to have been stamping you ought not to have been stamping they ought not to have been stamping

Interrogative form

Simple form	V-ing form
ought to I stamp? ought to you stamp? ought to he stamp? ought to we stamp? ought to you stamp? ought to they stamp?	ought to I be stamping? ought to you be stamping? ought to he be stamping? ought to we be stamping? ought to you be stamping? ought to they be stamping?
Perfect	V-ing perfect
ought to I have stamped? ought to you have stamped? ought to he have stamped? ought to we have stamped? ought to you have stamped? ought to they have stamped?	ought to I have been stamping? ought to you have been stamping? ought to he have been stamping? ought to we have been stamping? ought to you have been stamping? ought to they have been stamping?

Interro-negative form

Simple form	V-ing form
ought I not to stamp? ought you not to stamp? ought he not to stamp? ought we not to stamp? ought you not to stamp? ought they not to stamp?	ought I not to be stamping? ought you not to be stamping? ought he not to be stamping? ought we not to be stamping? ought you not to be stamping? ought they not to be stamping?
Perfect	V-ing perfect
ought I not to have stamped? ought you not to have stamped? ought he not to have stamped? ought we not to have stamped? ought you not to have stamped? ought they not to have stamped?	ought I not to have been stamping? ought you not to have been stamping? ought he not to have been stamping? ought we not to have been stamping? ought you not to have been stamping? ought they not to have been stamping?