将以下文本进行语法检查，并指出错误之处。
"Yesterday I have a nice trip to the park. I see many beautiful flowers and met some friendly people."
"Yesterday I had a nice trip to the park. I saw many beautiful flowers and met some friendly people."

错误：句子中有两处时态不一致，第一句用了现在完成时，不符合过去的上下文；第二句用了现在简单时，也应该是过去式。