问题补充：
写出一下单词的过去式、过去分词、现在分词.read water offer grow forget have think sit begin run 英语
答案：
【答案】 过去式 过去分词 现在分词
read read reading
watered watered watering
offered offered offering
grew grown growing
forgot forgotten forgetting
had had having
thought thought thinking
sat sat sitting
began begun beginning
ran run running
ps.关于那个forgetting,理论上讲应该是没有现在进行时的,但是可能会有这种情况,比如说一个人得了一种病,会渐渐地忘记以前发生的事情直到完全失忆,那这个时候就可以说He/She is forgetting things every day.个人意见,也不知道对不对.
