por su parte

of you

→ por
phrase Rare #33,369
of you Used to say that something is kind, generous, or appropriate on someone's part. It can also mean "on his/her part" depending on context.
SP: Fue muy atento por su parte.
EN: That was very thoughtful of him.

Es muy amable por su parte.

That's very kind of you.

Muy generoso por su parte.

Very generous of you.

Ha sido muy amable por su parte.

That was very kind of you.

Sí, hubo algún tipo de respuesta por su parte.

Yes, there was some kind of response from them.

No hubo ningún error por su parte.

There was no mistake on their part.

Muy amable por su parte.

Very kind of you.

Esperaba una conducta más sensata por su parte.

I expected more sensible behavior from him.

— Harry Potter y la piedra filosofal (2001)