I may retrofit you may retrofit he may retrofit we may retrofit you may retrofit they may retrofit
V-ing form
I may be retrofiting you may be retrofiting he may be retrofiting we may be retrofiting you may be retrofiting they may be retrofiting
Perfect
I may have retrofit you may have retrofit he may have retrofit we may have retrofit you may have retrofit they may have retrofit
V-ing perfect
I may have been retrofiting you may have been retrofiting he may have been retrofiting we may have been retrofiting you may have been retrofiting they may have been retrofiting
Negation
Simple form
I may not retrofit you may not retrofit he may not retrofit we may not retrofit you may not retrofit they may not retrofit
V-ing form
I may not be retrofiting you may not be retrofiting he may not be retrofiting we may not be retrofiting you may not be retrofiting they may not be retrofiting
Perfect
I may not have retrofit you may not have retrofit he may not have retrofit we may not have retrofit you may not have retrofit they may not have retrofit
V-ing perfect
I may not have been retrofiting you may not have been retrofiting he may not have been retrofiting we may not have been retrofiting you may not have been retrofiting they may not have been retrofiting
Interrogative form
Simple form
may I retrofit? may you retrofit? may he retrofit? may we retrofit? may you retrofit? may they retrofit?
V-ing form
may I be retrofiting? may you be retrofiting? may he be retrofiting? may we be retrofiting? may you be retrofiting? may they be retrofiting?
Perfect
may I have retrofit? may you have retrofit? may he have retrofit? may we have retrofit? may you have retrofit? may they have retrofit?
V-ing perfect
may I have been retrofiting? may you have been retrofiting? may he have been retrofiting? may we have been retrofiting? may you have been retrofiting? may they have been retrofiting?
Interro-negative form
Simple form
may I not retrofit? may you not retrofit? may he not retrofit? may we not retrofit? may you not retrofit? may they not retrofit?
V-ing form
may I not be retrofiting? may you not be retrofiting? may he not be retrofiting? may we not be retrofiting? may you not be retrofiting? may they not be retrofiting?
Perfect
may I not have retrofit? may you not have retrofit? may he not have retrofit? may we not have retrofit? may you not have retrofit? may they not have retrofit?
V-ing perfect
may I not have been retrofiting? may you not have been retrofiting? may he not have been retrofiting? may we not have been retrofiting? may you not have been retrofiting? may they not have been retrofiting?