YOU SAID:

so we back in the mine got our pickaxe swinging from side to side side side to side

INTO JAPANESE

だから私たちは鉱山に戻って私たちのつるはしが左右に左右に揺れていました

BACK INTO ENGLISH

So we went back to the mine and our pickaxe swayed from side to side

INTO JAPANESE

それで私たちは鉱山に戻り、つるはしは左右に揺れました

BACK INTO ENGLISH

So we returned to the mine and the rock swayed from side to side

INTO JAPANESE

それで私たちは鉱山に戻り、岩は左右に揺れました

BACK INTO ENGLISH

So we returned to the mine and the rock swayed from side to side