英语单词的第三人称单数形式、现在分词和过去式
问题描述：
英语单词的第三人称单数形式、现在分词和过去式
visit、read、fly、study、get、open、swim、see、write、run.
答
visits visiting visited
reads reading read
flies flying flew
studies studying studied
gets getting got
opens opening opened
swims swimming swam
sees seeing saw
writes writing wrote
runs running ran