to catch up: to work with the purpose of fulfilling a requirement or beingequal to others Examples of TO CATCH UP They still fall behind, only now they lack the energy or enthusiasm to catch up. If pupils fall behind, a second teacher can be sent in to help them to catch up.

to stop by: to visit or stop somewhere briefly in order to do something Examples of TO STOP BY   Stop by and learn how you might be able to make a difference for your neighbors. If we stop by the house at dinnertime, Mom says she’s already eaten and is full.

little by little: gradually, slowly (also: step by step) Examples of LITTLE BY LITTLE Little by little, we built up our investment portfolio so we could have a good retirement. The old building was slowly falling apart, little by little.

to run away: to leave without permission; to escape Examples of TO RUN AWAY Police said three suspects ran away, but one was arrested in the immediate area. Someone who runs away becomes a coward, while someone who fears nothing is rash.

to get back: to return Examples of GET BACK We’ll need to get back to headquarters, now that we’ve finished our mission. I like to get back to my hometown in the suburbs every couple of weeks, to visit my parents and to catch up with old friends.

to go wrong: to fail, to result badly Examples of TO GO WRONG Heaslip and Haim’s mother suspect that something went wrong with that treatment. I think we could use some more time to understand what went wrong with our economy.