" To put it differently, I would say: "I need to remove that tick which is been biting me all day long." I wouldn't say: "I have to be free from that tick." And that is why I would use "rid of" with a chilly, rather than "free" (it doesn't https://www.tumblr.com/homeinsulationgrant/761486325699543040/what-you-must-know-before-applying-for-eco