I ought to sing you ought to sing she ought to sing we ought to sing you ought to sing they ought to sing
V-ing form
I ought to be singing you ought to be singing she ought to be singing we ought to be singing you ought to be singing they ought to be singing
Perfect
I ought to have sung you ought to have sung she ought to have sung we ought to have sung you ought to have sung they ought to have sung
V-ing perfect
I ought to have been singing you ought to have been singing she ought to have been singing we ought to have been singing you ought to have been singing they ought to have been singing
Negation
Simple form
I ought not to sing you ought not to sing she ought not to sing we ought not to sing you ought not to sing they ought not to sing
V-ing form
I ought not to singing you ought not to singing she ought not to singing we ought not to singing you ought not to singing they ought not to singing
Perfect
I ought not to have sung you ought not to have sung she ought not to have sung we ought not to have sung you ought not to have sung they ought not to have sung
V-ing perfect
I ought not to have been singing you ought not to have been singing she ought not to have been singing we ought not to have been singing you ought not to have been singing they ought not to have been singing
Interrogative form
Simple form
ought to I sing? ought to you sing? ought to she sing? ought to we sing? ought to you sing? ought to they sing?
V-ing form
ought to I be singing? ought to you be singing? ought to she be singing? ought to we be singing? ought to you be singing? ought to they be singing?
Perfect
ought to I have sung? ought to you have sung? ought to she have sung? ought to we have sung? ought to you have sung? ought to they have sung?
V-ing perfect
ought to I have been singing? ought to you have been singing? ought to she have been singing? ought to we have been singing? ought to you have been singing? ought to they have been singing?
Interro-negative form
Simple form
ought I not to sing? ought you not to sing? ought she not to sing? ought we not to sing? ought you not to sing? ought they not to sing?
V-ing form
ought I not to be singing? ought you not to be singing? ought she not to be singing? ought we not to be singing? ought you not to be singing? ought they not to be singing?
Perfect
ought I not to have sung? ought you not to have sung? ought she not to have sung? ought we not to have sung? ought you not to have sung? ought they not to have sung?
V-ing perfect
ought I not to have been singing? ought you not to have been singing? ought she not to have been singing? ought we not to have been singing? ought you not to have been singing? ought they not to have been singing?