" To paraphrase, I would say: "I need to remove that tick that is been biting me all day." I would not say: "I must be free from that tick." And that is why I might use "rid of" with a chilly, rather than "free" (it does not matter whether https://eco4grants.game.blog/2025/07/20/government-grant-insulation-scheme-save-energy-cut-costs-now/