The work had been finished when I got there.

当我到达那里时，工作已经做完了。（过去完成时）

youdao

By the time I came back, the work had been finished.

到我回来时，此工作已经完成。

youdao

By the time I came back, the work had been finished.

到我回来时，此工作已经完成。

youdao