I ought to frog you ought to frog he ought to frog we ought to frog you ought to frog they ought to frog
V-ing form
I ought to be froging you ought to be froging he ought to be froging we ought to be froging you ought to be froging they ought to be froging
Perfect
I ought to have froged you ought to have froged he ought to have froged we ought to have froged you ought to have froged they ought to have froged
V-ing perfect
I ought to have been froging you ought to have been froging he ought to have been froging we ought to have been froging you ought to have been froging they ought to have been froging
Negation
Simple form
I ought not to frog you ought not to frog he ought not to frog we ought not to frog you ought not to frog they ought not to frog
V-ing form
I ought not to froging you ought not to froging he ought not to froging we ought not to froging you ought not to froging they ought not to froging
Perfect
I ought not to have froged you ought not to have froged he ought not to have froged we ought not to have froged you ought not to have froged they ought not to have froged
V-ing perfect
I ought not to have been froging you ought not to have been froging he ought not to have been froging we ought not to have been froging you ought not to have been froging they ought not to have been froging
Interrogative form
Simple form
ought to I frog? ought to you frog? ought to he frog? ought to we frog? ought to you frog? ought to they frog?
V-ing form
ought to I be froging? ought to you be froging? ought to he be froging? ought to we be froging? ought to you be froging? ought to they be froging?
Perfect
ought to I have froged? ought to you have froged? ought to he have froged? ought to we have froged? ought to you have froged? ought to they have froged?
V-ing perfect
ought to I have been froging? ought to you have been froging? ought to he have been froging? ought to we have been froging? ought to you have been froging? ought to they have been froging?
Interro-negative form
Simple form
ought I not to frog? ought you not to frog? ought he not to frog? ought we not to frog? ought you not to frog? ought they not to frog?
V-ing form
ought I not to be froging? ought you not to be froging? ought he not to be froging? ought we not to be froging? ought you not to be froging? ought they not to be froging?
Perfect
ought I not to have froged? ought you not to have froged? ought he not to have froged? ought we not to have froged? ought you not to have froged? ought they not to have froged?
V-ing perfect
ought I not to have been froging? ought you not to have been froging? ought he not to have been froging? ought we not to have been froging? ought you not to have been froging? ought they not to have been froging?