The cows are drinking watershine (shining) write (writing) come (coming) have (having) run (running) put (putting) drop (dropping) swim (swimming)send (sending) sing (singing) eat (eating) look (looking)现在进行时：表示现在正在做某事 结构 ： be （ am/is/are)+ V-ing1. 直接 +ing:2. 去 e +ing:3....
