I ought to experiment you ought to experiment he ought to experiment we ought to experiment you ought to experiment they ought to experiment
V-ing form
I ought to be experimenting you ought to be experimenting he ought to be experimenting we ought to be experimenting you ought to be experimenting they ought to be experimenting
Perfect
I ought to have experimented you ought to have experimented he ought to have experimented we ought to have experimented you ought to have experimented they ought to have experimented
V-ing perfect
I ought to have been experimenting you ought to have been experimenting he ought to have been experimenting we ought to have been experimenting you ought to have been experimenting they ought to have been experimenting
Negation
Simple form
I ought not to experiment you ought not to experiment he ought not to experiment we ought not to experiment you ought not to experiment they ought not to experiment
V-ing form
I ought not to experimenting you ought not to experimenting he ought not to experimenting we ought not to experimenting you ought not to experimenting they ought not to experimenting
Perfect
I ought not to have experimented you ought not to have experimented he ought not to have experimented we ought not to have experimented you ought not to have experimented they ought not to have experimented
V-ing perfect
I ought not to have been experimenting you ought not to have been experimenting he ought not to have been experimenting we ought not to have been experimenting you ought not to have been experimenting they ought not to have been experimenting
Interrogative form
Simple form
ought to I experiment? ought to you experiment? ought to he experiment? ought to we experiment? ought to you experiment? ought to they experiment?
V-ing form
ought to I be experimenting? ought to you be experimenting? ought to he be experimenting? ought to we be experimenting? ought to you be experimenting? ought to they be experimenting?
Perfect
ought to I have experimented? ought to you have experimented? ought to he have experimented? ought to we have experimented? ought to you have experimented? ought to they have experimented?
V-ing perfect
ought to I have been experimenting? ought to you have been experimenting? ought to he have been experimenting? ought to we have been experimenting? ought to you have been experimenting? ought to they have been experimenting?
Interro-negative form
Simple form
ought I not to experiment? ought you not to experiment? ought he not to experiment? ought we not to experiment? ought you not to experiment? ought they not to experiment?
V-ing form
ought I not to be experimenting? ought you not to be experimenting? ought he not to be experimenting? ought we not to be experimenting? ought you not to be experimenting? ought they not to be experimenting?
Perfect
ought I not to have experimented? ought you not to have experimented? ought he not to have experimented? ought we not to have experimented? ought you not to have experimented? ought they not to have experimented?
V-ing perfect
ought I not to have been experimenting? ought you not to have been experimenting? ought he not to have been experimenting? ought we not to have been experimenting? ought you not to have been experimenting? ought they not to have been experimenting?