YOU SAID:

I visited my mothers grave

INTO JAPANESE

母親たちの墓参りをした。

BACK INTO ENGLISH

I visited the graves of the mothers.

INTO JAPANESE

私は母親たちの墓を訪れた。

BACK INTO ENGLISH

I visited the graves of my mothers.

INTO JAPANESE

私は母親の墓を訪ねた。

BACK INTO ENGLISH

I visited my mother's grave.

INTO JAPANESE

母の墓参りをした。

BACK INTO ENGLISH

I visited my mother's grave.