I can retrofit you can retrofit he can retrofit we can retrofit you can retrofit they can retrofit
Forma con V-ing
I can be retrofiting you can be retrofiting he can be retrofiting we can be retrofiting you can be retrofiting they can be retrofiting
Perfecto
I can have retrofit you can have retrofit he can have retrofit we can have retrofit you can have retrofit they can have retrofit
Perfecto con V-ing
I can have been retrofiting you can have been retrofiting he can have been retrofiting we can have been retrofiting you can have been retrofiting they can have been retrofiting
Negación
Forma simple
I cannot retrofit you cannot retrofit he cannot retrofit we cannot retrofit you cannot retrofit they cannot retrofit
Forma con V-ing
I cannot be retrofiting you cannot be retrofiting he cannot be retrofiting we cannot be retrofiting you cannot be retrofiting they cannot be retrofiting
Perfecto
I cannot have retrofit you cannot have retrofit he cannot have retrofit we cannot have retrofit you cannot have retrofit they cannot have retrofit
Perfecto con V-ing
I cannot have been retrofiting you cannot have been retrofiting he cannot have been retrofiting we cannot have been retrofiting you cannot have been retrofiting they cannot have been retrofiting
Forma interrogativa
Forma simple
can I retrofit? can you retrofit? can he retrofit? can we retrofit? can you retrofit? can they retrofit?
Forma con V-ing
can I be retrofiting? can you be retrofiting? can he be retrofiting? can we be retrofiting? can you be retrofiting? can they be retrofiting?
Perfecto
can I have retrofit? can you have retrofit? can he have retrofit? can we have retrofit? can you have retrofit? can they have retrofit?
Perfecto con V-ing
can I have been retrofiting? can you have been retrofiting? can he have been retrofiting? can we have been retrofiting? can you have been retrofiting? can they have been retrofiting?
Forma interro-negativa
Forma simple
can I not retrofit? can you not retrofit? can he not retrofit? can we not retrofit? can you not retrofit? can they not retrofit?
Forma con V-ing
can I not be retrofiting? can you not be retrofiting? can he not be retrofiting? can we not be retrofiting? can you not be retrofiting? can they not be retrofiting?
Perfecto
can I not have retrofit? can you not have retrofit? can he not have retrofit? can we not have retrofit? can you not have retrofit? can they not have retrofit?
Perfecto con V-ing
can I not have been retrofiting? can you not have been retrofiting? can he not have been retrofiting? can we not have been retrofiting? can you not have been retrofiting? can they not have been retrofiting?