I should stamp you should stamp she should stamp we should stamp you should stamp they should stamp
V-ing form
I should be stamping you should be stamping she should be stamping we should be stamping you should be stamping they should be stamping
Perfect
I should have stamped you should have stamped she should have stamped we should have stamped you should have stamped they should have stamped
V-ing perfect
I should have been stamping you should have been stamping she should have been stamping we should have been stamping you should have been stamping they should have been stamping
Negation
Simple form
I should not stamp you should not stamp she should not stamp we should not stamp you should not stamp they should not stamp
V-ing form
I should not be stamping you should not be stamping she should not be stamping we should not be stamping you should not be stamping they should not be stamping
Perfect
I should not have stamped you should not have stamped she should not have stamped we should not have stamped you should not have stamped they should not have stamped
V-ing perfect
I should not have been stamping you should not have been stamping she should not have been stamping we should not have been stamping you should not have been stamping they should not have been stamping
Interrogative form
Simple form
should I stamp? should you stamp? should she stamp? should we stamp? should you stamp? should they stamp?
V-ing form
should I be stamping? should you be stamping? should she be stamping? should we be stamping? should you be stamping? should they be stamping?
Perfect
should I have stamped? should you have stamped? should she have stamped? should we have stamped? should you have stamped? should they have stamped?
V-ing perfect
should I have been stamping? should you have been stamping? should she have been stamping? should we have been stamping? should you have been stamping? should they have been stamping?
Interro-negative form
Simple form
should I not stamp? should you not stamp? should she not stamp? should we not stamp? should you not stamp? should they not stamp?
V-ing form
should I not be stamping? should you not be stamping? should she not be stamping? should we not be stamping? should you not be stamping? should they not be stamping?
Perfect
should I not have stamped? should you not have stamped? should she not have stamped? should we not have stamped? should you not have stamped? should they not have stamped?
V-ing perfect
should I not have been stamping? should you not have been stamping? should she not have been stamping? should we not have been stamping? should you not have been stamping? should they not have been stamping?