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