YOU SAID:

I've lost my phone in Tokyo, I'm really sad

INTO JAPANESE

東京で携帯をなくしてしまった、本当に悲しい

BACK INTO ENGLISH

I lost my cell phone in Tokyo, it's really sad

INTO JAPANESE

東京で携帯電話をなくした、本当に悲しい

BACK INTO ENGLISH

I lost my mobile phone in Tokyo, really sad

INTO JAPANESE

東京で携帯電話をなくしてしまった、本当に悲しい

BACK INTO ENGLISH

I lost my mobile phone in Tokyo, it's really sad

INTO JAPANESE

東京で携帯電話をなくした、本当に悲しい

BACK INTO ENGLISH

I lost my mobile phone in Tokyo, really sad

INTO JAPANESE

東京で携帯電話をなくしてしまった、本当に悲しい

BACK INTO ENGLISH

I lost my mobile phone in Tokyo, it's really sad