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