The basic Chinese words for "before" and "after" are 以前 (yǐqián) and 以后 (yǐhòu). If you're anything like the typical learner of Chinese, though, you could use a little bit more help on how to use these words. After covering those basics, we help you out with a few other more advanced "before" and "after" issues.
John,Connie,Liliana