Examples of using "потерянный" in a sentence and their english translations:
The boy was searching for the lost key.
You guys look lost.
A day without laughter is a day wasted.
A day without smiling is a day lost.
The lost key was under the couch.
Mission one is to find this wreckage and retrieve this lost cargo.
The boy was searching for the lost key.
I found the pencil I lost.
The boy was searching for the key that he had lost.