Everyone is lying, even if they deny it, they are already lying. You can lie for good, in your opinion, if you have hidden something to not upset someone, it is still considered a lie, but the main thing to remember is that sooner or later everything becomes clear.
          But if you are lying, then it's important not to screw up at all, because, as we know, there are no great liars. Sooner or later they will be mistaken and it will become clear that he or she or she (if the same lie hides several) lied.
There are also those who cover lies. Basically, this is done because someone is lying who is dear to those who cover. It can be a family member, friend or even someone you care about who you love.
      I'm not saying that people should not lie, it's in the nature of a person to lie.