YOU SAID:

I don't know what I am going to do

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私は私が行うつもりとは知らない

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I do not know and I do

INTO JAPANESE

私は知っていないとすれば

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And I do not know if

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私がわからない場合は、

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I don't know if

INTO JAPANESE

私にはさっぱり...

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I don't know if I...

INTO JAPANESE

私にはさっぱり...

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I don't know if I...