If you have lost something, and you would like to convey that idea to someone in the present tense, then the word you are looking for is lose. The word you are not looking for, but appear to have found anyhow, is loose.
If something is loose, it's certainly possible that you will lose it at some point, but what I'm more concerned about is not the fact that you might lose your thing, but rather that you seem to have a loose grasp on the English language.
love,
ChuckJerry
ps - can we please understand that the word definitely does not have an A in it?