YOU SAID:

I have a dog named Martha.

INTO JAPANESE

という名前の犬のマーサがあります。

BACK INTO ENGLISH

Has a dog named Martha.

INTO JAPANESE

犬はマーサを名前します。

BACK INTO ENGLISH

A dog named Martha.

INTO JAPANESE

という名前の犬のマーサ。

BACK INTO ENGLISH

Dog named Martha.

INTO JAPANESE

犬の名前マーサ。

BACK INTO ENGLISH

Dog named Martha.