I can polish you can polish he can polish we can polish you can polish they can polish
Forma con V-ing
I can be polishing you can be polishing he can be polishing we can be polishing you can be polishing they can be polishing
Perfecto
I can have polished you can have polished he can have polished we can have polished you can have polished they can have polished
Perfecto con V-ing
I can have been polishing you can have been polishing he can have been polishing we can have been polishing you can have been polishing they can have been polishing
Negación
Forma simple
I can't polish you can't polish he can't polish we can't polish you can't polish they can't polish
Forma con V-ing
I can't be polishing you can't be polishing he can't be polishing we can't be polishing you can't be polishing they can't be polishing
Perfecto
I can't have polished you can't have polished he can't have polished we can't have polished you can't have polished they can't have polished
Perfecto con V-ing
I can't have been polishing you can't have been polishing he can't have been polishing we can't have been polishing you can't have been polishing they can't have been polishing
Forma interrogativa
Forma simple
can I polish? can you polish? can he polish? can we polish? can you polish? can they polish?
Forma con V-ing
can I be polishing? can you be polishing? can he be polishing? can we be polishing? can you be polishing? can they be polishing?
Perfecto
can I have polished? can you have polished? can he have polished? can we have polished? can you have polished? can they have polished?
Perfecto con V-ing
can I have been polishing? can you have been polishing? can he have been polishing? can we have been polishing? can you have been polishing? can they have been polishing?
Forma interro-negativa
Forma simple
can't I polish? can't you polish? can't he polish? can't we polish? can't you polish? can't they polish?
Forma con V-ing
can't I be polishing? can't you be polishing? can't he be polishing? can't we be polishing? can't you be polishing? can't they be polishing?
Perfecto
can't I have polished? can't you have polished? can't he have polished? can't we have polished? can't you have polished? can't they have polished?
Perfecto con V-ing
can't I have been polishing? can't you have been polishing? can't he have been polishing? can't we have been polishing? can't you have been polishing? can't they have been polishing?