

Прошлое уже не вернёшь.
You can't bring back the past.
Он не любит говорить о своём прошлом.
He doesn't like to talk about his past.
Это всё в прошлом, забудь об этом.
That's all in the past, forget about it.
"прошлое" is in the lesson "Time 2" (Level 35), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.