YOU SAID:

i have lost my mother in the super market

INTO JAPANESE

私はスーパーマーケットで母を失った

BACK INTO ENGLISH

I lost my mother in the supermarket

INTO JAPANESE

私はスーパーで母をなくしました

BACK INTO ENGLISH

I lost my mother at the supermarket

INTO JAPANESE

私はスーパーで母を失くした

BACK INTO ENGLISH

I lost my mother at the supermarket