YOU SAID:

This is a thing that I don't know what to do

INTO JAPANESE

これはどうすればいいのか分からないものですね

BACK INTO ENGLISH

I don't know what to do with this

INTO JAPANESE

これをどうすればいいのかわかりません

BACK INTO ENGLISH

i don't know how to do this

INTO JAPANESE

やり方が分かりません

BACK INTO ENGLISH

i don't know how to do

INTO JAPANESE

どうすればいいのかわかりません

BACK INTO ENGLISH

i don't know what to do

INTO JAPANESE

何をすればいいのか分かりません

BACK INTO ENGLISH

i don't know what to do