I ought to water-ski you ought to water-ski he ought to water-ski we ought to water-ski you ought to water-ski they ought to water-ski
V-ing form
I ought to be water-skiing you ought to be water-skiing he ought to be water-skiing we ought to be water-skiing you ought to be water-skiing they ought to be water-skiing
Perfect
I ought to have water-skied you ought to have water-skied he ought to have water-skied we ought to have water-skied you ought to have water-skied they ought to have water-skied
V-ing perfect
I ought to have been water-skiing you ought to have been water-skiing he ought to have been water-skiing we ought to have been water-skiing you ought to have been water-skiing they ought to have been water-skiing
Negation
Simple form
I ought not to water-ski you ought not to water-ski he ought not to water-ski we ought not to water-ski you ought not to water-ski they ought not to water-ski
V-ing form
I ought not to water-skiing you ought not to water-skiing he ought not to water-skiing we ought not to water-skiing you ought not to water-skiing they ought not to water-skiing
Perfect
I ought not to have water-skied you ought not to have water-skied he ought not to have water-skied we ought not to have water-skied you ought not to have water-skied they ought not to have water-skied
V-ing perfect
I ought not to have been water-skiing you ought not to have been water-skiing he ought not to have been water-skiing we ought not to have been water-skiing you ought not to have been water-skiing they ought not to have been water-skiing
Interrogative form
Simple form
ought to I water-ski? ought to you water-ski? ought to he water-ski? ought to we water-ski? ought to you water-ski? ought to they water-ski?
V-ing form
ought to I be water-skiing? ought to you be water-skiing? ought to he be water-skiing? ought to we be water-skiing? ought to you be water-skiing? ought to they be water-skiing?
Perfect
ought to I have water-skied? ought to you have water-skied? ought to he have water-skied? ought to we have water-skied? ought to you have water-skied? ought to they have water-skied?
V-ing perfect
ought to I have been water-skiing? ought to you have been water-skiing? ought to he have been water-skiing? ought to we have been water-skiing? ought to you have been water-skiing? ought to they have been water-skiing?
Interro-negative form
Simple form
ought I not to water-ski? ought you not to water-ski? ought he not to water-ski? ought we not to water-ski? ought you not to water-ski? ought they not to water-ski?
V-ing form
ought I not to be water-skiing? ought you not to be water-skiing? ought he not to be water-skiing? ought we not to be water-skiing? ought you not to be water-skiing? ought they not to be water-skiing?
Perfect
ought I not to have water-skied? ought you not to have water-skied? ought he not to have water-skied? ought we not to have water-skied? ought you not to have water-skied? ought they not to have water-skied?
V-ing perfect
ought I not to have been water-skiing? ought you not to have been water-skiing? ought he not to have been water-skiing? ought we not to have been water-skiing? ought you not to have been water-skiing? ought they not to have been water-skiing?