I ought to board you ought to board she ought to board we ought to board you ought to board they ought to board
V-ing form
I ought to be boarding you ought to be boarding she ought to be boarding we ought to be boarding you ought to be boarding they ought to be boarding
Perfect
I ought to have boarded you ought to have boarded she ought to have boarded we ought to have boarded you ought to have boarded they ought to have boarded
V-ing perfect
I ought to have been boarding you ought to have been boarding she ought to have been boarding we ought to have been boarding you ought to have been boarding they ought to have been boarding
Negation
Simple form
I ought not to board you ought not to board she ought not to board we ought not to board you ought not to board they ought not to board
V-ing form
I ought not to boarding you ought not to boarding she ought not to boarding we ought not to boarding you ought not to boarding they ought not to boarding
Perfect
I ought not to have boarded you ought not to have boarded she ought not to have boarded we ought not to have boarded you ought not to have boarded they ought not to have boarded
V-ing perfect
I ought not to have been boarding you ought not to have been boarding she ought not to have been boarding we ought not to have been boarding you ought not to have been boarding they ought not to have been boarding
Interrogative form
Simple form
ought to I board? ought to you board? ought to she board? ought to we board? ought to you board? ought to they board?
V-ing form
ought to I be boarding? ought to you be boarding? ought to she be boarding? ought to we be boarding? ought to you be boarding? ought to they be boarding?
Perfect
ought to I have boarded? ought to you have boarded? ought to she have boarded? ought to we have boarded? ought to you have boarded? ought to they have boarded?
V-ing perfect
ought to I have been boarding? ought to you have been boarding? ought to she have been boarding? ought to we have been boarding? ought to you have been boarding? ought to they have been boarding?
Interro-negative form
Simple form
ought I not to board? ought you not to board? ought she not to board? ought we not to board? ought you not to board? ought they not to board?
V-ing form
ought I not to be boarding? ought you not to be boarding? ought she not to be boarding? ought we not to be boarding? ought you not to be boarding? ought they not to be boarding?
Perfect
ought I not to have boarded? ought you not to have boarded? ought she not to have boarded? ought we not to have boarded? ought you not to have boarded? ought they not to have boarded?
V-ing perfect
ought I not to have been boarding? ought you not to have been boarding? ought she not to have been boarding? ought we not to have been boarding? ought you not to have been boarding? ought they not to have been boarding?