Mi ne povas ĝin trovi ie en la ĉambro = I cannot find it anywhere in the room.
Mi ne povis trovi mian libron ie en la ĉambro = I could not find my book anywhere in the room.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "trovi" in a variety of sentences. We hope that you will now be able to make sentences using this word.