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?）
答
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,