YOU SAID:

Hello, what are you doing and may I join

INTO JAPANESE

こんにちは、何してるの？参加してもいいですか

BACK INTO ENGLISH

Hello what are you doing Can i participate

INTO JAPANESE

こんにちは、何してますか参加できますか

BACK INTO ENGLISH

Hello, can I join something and you have

INTO JAPANESE

こんにちは、私は何かに参加できますか？

BACK INTO ENGLISH

Hi, can I participate in something?

INTO JAPANESE

こんにちは、何か参加できますか？

BACK INTO ENGLISH

Hello, can I join anything?

INTO JAPANESE

こんにちは、何でも参加できますか？

BACK INTO ENGLISH

Hello, anything can I participate?

INTO JAPANESE

こんにちは、何でも参加できますか？