过去分词：I went to the zoo yesterday.(went是go的过去分词) 现在分词：Autumn is coming. 不定式：I begain to play computer games. 定语从句：The day when i went to the zoo. 语法很复杂，说不太清楚呢，呵呵，希望能帮到你，如果需要可以加我
