YOU SAID:

there are twenty rats in my head

INTO JAPANESE

私の頭には20匹のネズミがいます

BACK INTO ENGLISH

I have 20 rats in my head

INTO JAPANESE

頭の中にネズミが20匹いる

BACK INTO ENGLISH

I have 20 mice in my head

INTO JAPANESE

私の頭には20匹のネズミがいます

BACK INTO ENGLISH

I have 20 rats in my head

INTO JAPANESE

頭の中にネズミが20匹いる

BACK INTO ENGLISH

I have 20 mice in my head