The ones I use most are: 1. to run up (a bill/debt) because I am always running up bills! 2. to splash out on (something) because I'm always spending money (see number 1 !) 3. To get away with (something) because I'm often guilty of things and hoping I can avoid the blame! 4. To get out of (something) because I'm always invited to boring parties I want to evade! Actually, I use SO MANY phrasal verbs every I can't really say which I use most. Every day I have TO PUT UP WITH things I don't like, and every day I SET OFF with the dogs on a walk, and come back home and SET ABOUT my chores. Often I can't think of the more formal version of the verb! And often the formal/latinate version doesn't really do the job. Only the phrasal verb really hits the spot. Know what I mean????

I often say something "drives me up the wall" when something is annoying me. When someone is avoiding answering a question, I might say they're "trying to dance around the truth" or "beating around the bush". When I discover an unpleasant truth, I might call it a "rude awakening". When one bad thing only leads to another bad thing, I would call this a "vicious circle". I hope this is helpful!