I went out for buying postcards named '喪中はがき(mochu hagaki).
I went out to buying postcards named '喪中はがき(mochu hagaki).

My grand mother died on this year.
My grandmother died on this year.

We send Mochu-Hagaki insted of New Year's card when someone in our family died.
We send Mochu-Hagaki insted of New Year's card when someone in our family has died. (or "when someone in our family died")

Mochu-Hagaki is a kind of Japanese culture to express mourning the passing.
Mochu-Hagaki is a kind of Japanese culture to express mourning the passing of someone. (or "to express mourning of someone passing")

Dose your country have such culture?
Does your country have such culture?