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 oughtn't to frost you oughtn't to frost she oughtn't to frost we oughtn't to frost you oughtn't to frost they oughtn't to frost
V-ing form
I oughtn't to be frosting you oughtn't to be frosting she oughtn't to be frosting we oughtn't to be frosting you oughtn't to be frosting they oughtn't to be frosting
Perfect
I oughtn't to have frosted you oughtn't to have frosted she oughtn't to have frosted we oughtn't to have frosted you oughtn't to have frosted they oughtn't to have frosted
V-ing perfect
I oughtn't to have been frosting you oughtn't to have been frosting she oughtn't to have been frosting we oughtn't to have been frosting you oughtn't to have been frosting they oughtn't 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
oughtn't I to frost? oughtn't you to frost? oughtn't she to frost? oughtn't we to frost? oughtn't you to frost? oughtn't they to frost?
V-ing form
oughtn't I to be frosting? oughtn't you to be frosting? oughtn't she to be frosting? oughtn't we to be frosting? oughtn't you to be frosting? oughtn't they to be frosting?
Perfect
oughtn't I to have frosted? oughtn't you to have frosted? oughtn't she to have frosted? oughtn't we to have frosted? oughtn't you to have frosted? oughtn't they to have frosted?
V-ing perfect
oughtn't I to have been frosting? oughtn't you to have been frosting? oughtn't she to have been frosting? oughtn't we to have been frosting? oughtn't you to have been frosting? oughtn't they to have been frosting?