YOU SAID:

Um hello what am I doing here

INTO JAPANESE

Um こんにちは私はここに何をやって

BACK INTO ENGLISH

UM Hi I was here doing what

INTO JAPANESE

UM こんにちは私ここで何をしていた

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UM Hi I had something here

INTO JAPANESE

UM こんにちは私は何かここで

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UM Hello I do something here

INTO JAPANESE

UM こんにちは私は何かここで

BACK INTO ENGLISH

UM Hello I do something here