YOU SAID:
Hello my neighbor... What are you up to?
INTO JAPANESE
こんにちは、私の隣人.何やってるの。
BACK INTO ENGLISH
Hello, my neighbors... What are you doing.
INTO JAPANESE
こんにちは、私の隣人.何をしていますか。
BACK INTO ENGLISH
Hello, my neighbors... What are you doing?.
INTO JAPANESE
こんにちは、私の隣人.何をしていますか。。
BACK INTO ENGLISH
Hello, my neighbors... What are you doing?.
That didn't even make that much sense in English.