put的过去式和过去分词 我以前也苦恼过啊 有次终于受不了去看医生，他叫我涂下红霉素眼膏就好了，就在发红的地方抹 不过我不知道这对你有没有用 我想你去问下医生吧
put的过去式是什么 put 过去式 put 过去分词 putPS：put 就是那种三种形式都不变的词~这种词还有一些，最好背下来^
求以下动词的过去式和过去分词 过去式 过去分词be was\\were beengo went gonecome came comehear heard heardsee saw seeneat ate eaten find found foundbuy buoght boughtbring brought broughttake took takenmake made madesing sang sungring.
