i have began the lesson.和 i have begun the lesson.有什么区别?

问题描述:

i have began the lesson.和 i have begun the lesson.有什么区别?

现在完成时由have/has + v-ed分词构成、
而begin的过去分词是begun,began是过去时.
begin-began-begun
所以第一个句子是错误的.