YOU SAID:

I've done this one or twice but I still don't understand what's going on.

INTO JAPANESE

私はこれを1〜2回やったが、私はまだ何が起こっているのか分からない。

BACK INTO ENGLISH

I've been doing this once or twice, but I still don't know what's going on.

INTO JAPANESE

私はこれを一度か二度やってきましたが、私はまだ何が起こっているのか分かりません。

BACK INTO ENGLISH

I've been doing this once or twice and I still don't know what's going on.

INTO JAPANESE

私はこれを一度か二度やしてきましたが、私はまだ何が起こっているのか分かりません。

BACK INTO ENGLISH

I've been doing this once or twice and I still don't know what's going on.