I began to collect stamps three years ago.(collect为什么要用原形?)

问题描述:

I began to collect stamps three years ago.(collect为什么要用原形?)

begin to do sth

此处 to 为不定式的符号,其后接动词原形。

动词不定式 I want to,I begin to 等中的 go,begin 等动词
要接 动词原型,例
love to eat
began to collect
go to sleep
start to rain
want to come
等等.
这是语法.
希望帮到了你,