YOU SAID:

I don’t know if I can get a hold of you.

INTO JAPANESE

あなたに連絡が取れるかどうか分かりません。

BACK INTO ENGLISH

I don't know if I can contact you.

INTO JAPANESE

連絡が取れるか分かりません。

BACK INTO ENGLISH

I don't know if I can get in touch with him.

INTO JAPANESE

彼と連絡が取れるかどうか分からない。

BACK INTO ENGLISH

I don't know if I can get in touch with him.