I ought to frost you ought to frost she ought to frost we ought to frost you ought to frost they ought to frost
V-ing form
I ought to be frosting you ought to be frosting she ought to be frosting we ought to be frosting you ought to be frosting they ought to be frosting
Perfect
I ought to have frosted you ought to have frosted she ought to have frosted we ought to have frosted you ought to have frosted they ought to have frosted
V-ing perfect
I ought to have been frosting you ought to have been frosting she ought to have been frosting we ought to have been frosting you ought to have been frosting they ought to have been frosting
Negation
Simple form
I ought not to frost you ought not to frost she ought not to frost we ought not to frost you ought not to frost they ought not to frost
V-ing form
I ought not to frosting you ought not to frosting she ought not to frosting we ought not to frosting you ought not to frosting they ought not to frosting
Perfect
I ought not to have frosted you ought not to have frosted she ought not to have frosted we ought not to have frosted you ought not to have frosted they ought not to have frosted
V-ing perfect
I ought not to have been frosting you ought not to have been frosting she ought not to have been frosting we ought not to have been frosting you ought not to have been frosting they ought not to have been frosting
Interrogative form
Simple form
ought to I frost? ought to you frost? ought to she frost? ought to we frost? ought to you frost? ought to they frost?
V-ing form
ought to I be frosting? ought to you be frosting? ought to she be frosting? ought to we be frosting? ought to you be frosting? ought to they be frosting?
Perfect
ought to I have frosted? ought to you have frosted? ought to she have frosted? ought to we have frosted? ought to you have frosted? ought to they have frosted?
V-ing perfect
ought to I have been frosting? ought to you have been frosting? ought to she have been frosting? ought to we have been frosting? ought to you have been frosting? ought to they have been frosting?
Interro-negative form
Simple form
ought I not to frost? ought you not to frost? ought she not to frost? ought we not to frost? ought you not to frost? ought they not to frost?
V-ing form
ought I not to be frosting? ought you not to be frosting? ought she not to be frosting? ought we not to be frosting? ought you not to be frosting? ought they not to be frosting?
Perfect
ought I not to have frosted? ought you not to have frosted? ought she not to have frosted? ought we not to have frosted? ought you not to have frosted? ought they not to have frosted?
V-ing perfect
ought I not to have been frosting? ought you not to have been frosting? ought she not to have been frosting? ought we not to have been frosting? ought you not to have been frosting? ought they not to have been frosting?