Translation

Hello. Can anybody help me with translating this?

"We cannot go back to the past, no matter how hard we try. No matter how wonderful it was. The past is nothing but the past."

I will be very happy if somebody can handle this. Thx ;)

"We cannot go back to the past, no matter how hard we try. No matter how wonderful it was. The past is nothing but the past."

Kesshite kako ni modoru koto wa dekinai. Dore dake doryoku shite mo. Dore hodo subarashii kako datta to shite mo. Kako wa kako ni suginai.
決して過去に戻ることはできない。どれだけ努力しても。どれほど素晴らしい過去だったとしても。過去は過去に過ぎない。

here is another way of translating it.

kako wa ikura utsukushikatta to shite mo, ikura kakou ni modorou to shite mo modorenai, kako wa kako dakara.
or
kako wa kako desu,ikura utsukushikatta to shite mo, ikura modorou to shite mo modorenai.