present past and future progressive tense

French Spiderman Alain Robert has finished his latest climbing the tallest building in the world. Alain has successfully reached the top from the tapered spire over the 160th floor of the building. The 47-year-old is known for climbing buildings all over the world just using bare hands and climbing shoes. It is only human nature to search out some tips on something before choosing it. In fact, it shows you have some wise practice, and aren't an obsessive buyer. You should always research something prior to buying it, otherwise, you could find yourself out of pocket, and unhappy. A simple little bit of internet principals are all that's needed to help make a knowledgeable decision on regardless if you are planning on buying something or otherwise not, plus it takes minutes to accomplish, so why not do it?