YOU SAID:

I never know what to expect.

INTO JAPANESE

私は何を期待するのか分からない。

BACK INTO ENGLISH

I do not know what to expect.

INTO JAPANESE

何が期待できるのかわかりません。

BACK INTO ENGLISH

I do not know what can be expected.

INTO JAPANESE

何が期待できるのかわかりません。

BACK INTO ENGLISH

I do not know what can be expected.