watch的复数 watch的复数为什么加es

1、watch第三人称单数：watches 复数：watches 现在分词：watching 过去式：watched 过去分词：watched
2、watch v.看; 注视; 观看; 观察; (短时间) 照看，看护，照管; 小心; 当心; 留意；n.表; 手表; (旧时的) 怀表; 注意; 注视; 监视; 观察; 值班(人); 警戒(人); 守夜(人)。
3、[例句]The man was standing in his doorway watching him.那个男人站在门口盯着他看。