In july,she flown to ..In july,she flown to America to begin to work.这句话为什么用的是begin to而不是began to
问题描述：
In july,she flown to ..
In july,she flown to America to begin to work.
这句话为什么用的是begin to而不是began to
答
to begin to do在这里是不定式表原因，不定式都是to do/to be done等而不是to did
答
begin 前面有个to
to+动词 表示不定式结构，表示目的
to后面的动词要用原型，这是规定
答
不定式
In july,she flown to America to begin to work
In july,she flown to America and began to work
答
介词to后面要加动词原形