I should harp you should harp he should harp we should harp you should harp they should harp
V-ing form
I should be harping you should be harping he should be harping we should be harping you should be harping they should be harping
Perfect
I should have harped you should have harped he should have harped we should have harped you should have harped they should have harped
V-ing perfect
I should have been harping you should have been harping he should have been harping we should have been harping you should have been harping they should have been harping
Negation
Simple form
I should not harp you should not harp he should not harp we should not harp you should not harp they should not harp
V-ing form
I should not be harping you should not be harping he should not be harping we should not be harping you should not be harping they should not be harping
Perfect
I should not have harped you should not have harped he should not have harped we should not have harped you should not have harped they should not have harped
V-ing perfect
I should not have been harping you should not have been harping he should not have been harping we should not have been harping you should not have been harping they should not have been harping
Interrogative form
Simple form
should I harp? should you harp? should he harp? should we harp? should you harp? should they harp?
V-ing form
should I be harping? should you be harping? should he be harping? should we be harping? should you be harping? should they be harping?
Perfect
should I have harped? should you have harped? should he have harped? should we have harped? should you have harped? should they have harped?
V-ing perfect
should I have been harping? should you have been harping? should he have been harping? should we have been harping? should you have been harping? should they have been harping?
Interro-negative form
Simple form
should I not harp? should you not harp? should he not harp? should we not harp? should you not harp? should they not harp?
V-ing form
should I not be harping? should you not be harping? should he not be harping? should we not be harping? should you not be harping? should they not be harping?
Perfect
should I not have harped? should you not have harped? should he not have harped? should we not have harped? should you not have harped? should they not have harped?
V-ing perfect
should I not have been harping? should you not have been harping? should he not have been harping? should we not have been harping? should you not have been harping? should they not have been harping?