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