YOU SAID:

my cat named taki and he is fat what to do?

INTO JAPANESE

私の猫というタキと彼は脂肪は何をするか。

BACK INTO ENGLISH

Taki is my cat and he is fat or what.

INTO JAPANESE

タキは私の猫で、脂肪か。

BACK INTO ENGLISH

My cat is Taki, or fat.

INTO JAPANESE

私の猫は、タキ、または脂肪です。

BACK INTO ENGLISH

My cat is Taki, or fat.