I ought to slip you ought to slip she ought to slip we ought to slip you ought to slip they ought to slip
V-ing form
I ought to be slipping you ought to be slipping she ought to be slipping we ought to be slipping you ought to be slipping they ought to be slipping
Perfect
I ought to have slipped you ought to have slipped she ought to have slipped we ought to have slipped you ought to have slipped they ought to have slipped
V-ing perfect
I ought to have been slipping you ought to have been slipping she ought to have been slipping we ought to have been slipping you ought to have been slipping they ought to have been slipping
Negation
Simple form
I ought not to slip you ought not to slip she ought not to slip we ought not to slip you ought not to slip they ought not to slip
V-ing form
I ought not to slipping you ought not to slipping she ought not to slipping we ought not to slipping you ought not to slipping they ought not to slipping
Perfect
I ought not to have slipped you ought not to have slipped she ought not to have slipped we ought not to have slipped you ought not to have slipped they ought not to have slipped
V-ing perfect
I ought not to have been slipping you ought not to have been slipping she ought not to have been slipping we ought not to have been slipping you ought not to have been slipping they ought not to have been slipping
Interrogative form
Simple form
ought to I slip? ought to you slip? ought to she slip? ought to we slip? ought to you slip? ought to they slip?
V-ing form
ought to I be slipping? ought to you be slipping? ought to she be slipping? ought to we be slipping? ought to you be slipping? ought to they be slipping?
Perfect
ought to I have slipped? ought to you have slipped? ought to she have slipped? ought to we have slipped? ought to you have slipped? ought to they have slipped?
V-ing perfect
ought to I have been slipping? ought to you have been slipping? ought to she have been slipping? ought to we have been slipping? ought to you have been slipping? ought to they have been slipping?
Interro-negative form
Simple form
ought I not to slip? ought you not to slip? ought she not to slip? ought we not to slip? ought you not to slip? ought they not to slip?
V-ing form
ought I not to be slipping? ought you not to be slipping? ought she not to be slipping? ought we not to be slipping? ought you not to be slipping? ought they not to be slipping?
Perfect
ought I not to have slipped? ought you not to have slipped? ought she not to have slipped? ought we not to have slipped? ought you not to have slipped? ought they not to have slipped?
V-ing perfect
ought I not to have been slipping? ought you not to have been slipping? ought she not to have been slipping? ought we not to have been slipping? ought you not to have been slipping? ought they not to have been slipping?