YOU SAID:

I have waited for a long time.

INTO JAPANESE

長い時間待ったことがあります。

BACK INTO ENGLISH

You may wait a long time.

INTO JAPANESE

長い時間を待つことがあります。

BACK INTO ENGLISH

You may wait for a long time.

INTO JAPANESE

長い時間を待つ可能性があります。

BACK INTO ENGLISH

You may wait for a long time.