fight，lead，must，set，shall，wear，will的过去式和过去分词分别是什么 fight的过去式和过去分词都是foughtlead，led，ledmust没有set，set，setwear，wore，wornwill过去式是would，没有过去分词
求一下个单词的过去式.过去分词和现在分词【急， buy bought bought buyingbring brought brought bringingfight fought fought fightingthink thought thought thinkingcatch caught caught catchinglose lost lost losingfeel felt felt feelingsleep slept slept.
flight 和 fight 的过去式 flight是名词fight过去式、过去分词fought
