I ought to cough you ought to cough he ought to cough we ought to cough you ought to cough they ought to cough
V-ing form
I ought to be coughing you ought to be coughing he ought to be coughing we ought to be coughing you ought to be coughing they ought to be coughing
Perfect
I ought to have coughed you ought to have coughed he ought to have coughed we ought to have coughed you ought to have coughed they ought to have coughed
V-ing perfect
I ought to have been coughing you ought to have been coughing he ought to have been coughing we ought to have been coughing you ought to have been coughing they ought to have been coughing
Negation
Simple form
I oughtn't to cough you oughtn't to cough he oughtn't to cough we oughtn't to cough you oughtn't to cough they oughtn't to cough
V-ing form
I oughtn't to be coughing you oughtn't to be coughing he oughtn't to be coughing we oughtn't to be coughing you oughtn't to be coughing they oughtn't to be coughing
Perfect
I oughtn't to have coughed you oughtn't to have coughed he oughtn't to have coughed we oughtn't to have coughed you oughtn't to have coughed they oughtn't to have coughed
V-ing perfect
I oughtn't to have been coughing you oughtn't to have been coughing he oughtn't to have been coughing we oughtn't to have been coughing you oughtn't to have been coughing they oughtn't to have been coughing
Interrogative form
Simple form
ought to I cough? ought to you cough? ought to he cough? ought to we cough? ought to you cough? ought to they cough?
V-ing form
ought to I be coughing? ought to you be coughing? ought to he be coughing? ought to we be coughing? ought to you be coughing? ought to they be coughing?
Perfect
ought to I have coughed? ought to you have coughed? ought to he have coughed? ought to we have coughed? ought to you have coughed? ought to they have coughed?
V-ing perfect
ought to I have been coughing? ought to you have been coughing? ought to he have been coughing? ought to we have been coughing? ought to you have been coughing? ought to they have been coughing?
Interro-negative form
Simple form
oughtn't I to cough? oughtn't you to cough? oughtn't he to cough? oughtn't we to cough? oughtn't you to cough? oughtn't they to cough?
V-ing form
oughtn't I to be coughing? oughtn't you to be coughing? oughtn't he to be coughing? oughtn't we to be coughing? oughtn't you to be coughing? oughtn't they to be coughing?
Perfect
oughtn't I to have coughed? oughtn't you to have coughed? oughtn't he to have coughed? oughtn't we to have coughed? oughtn't you to have coughed? oughtn't they to have coughed?
V-ing perfect
oughtn't I to have been coughing? oughtn't you to have been coughing? oughtn't he to have been coughing? oughtn't we to have been coughing? oughtn't you to have been coughing? oughtn't they to have been coughing?