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 can't retrofit you can't retrofit he can't retrofit we can't retrofit you can't retrofit they can't retrofit
Forma con V-ing
I can't be retrofiting you can't be retrofiting he can't be retrofiting we can't be retrofiting you can't be retrofiting they can't be retrofiting
Perfecto
I can't have retrofit you can't have retrofit he can't have retrofit we can't have retrofit you can't have retrofit they can't have retrofit
Perfecto con V-ing
I can't have been retrofiting you can't have been retrofiting he can't have been retrofiting we can't have been retrofiting you can't have been retrofiting they can't 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't I retrofit? can't you retrofit? can't he retrofit? can't we retrofit? can't you retrofit? can't they retrofit?
Forma con V-ing
can't I be retrofiting? can't you be retrofiting? can't he be retrofiting? can't we be retrofiting? can't you be retrofiting? can't they be retrofiting?
Perfecto
can't I have retrofit? can't you have retrofit? can't he have retrofit? can't we have retrofit? can't you have retrofit? can't they have retrofit?
Perfecto con V-ing
can't I have been retrofiting? can't you have been retrofiting? can't he have been retrofiting? can't we have been retrofiting? can't you have been retrofiting? can't they have been retrofiting?