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