I plan to going to see a new play.用to
问题描述：
I plan to going to see a new play.用to
答
不对
plan to do
答
I plan to go to see a new play.
答
应该是 be going to
答
不对
to 是动词不定式，后面应该用动词原形，即用GO
答
plan to do sth,计划做某事
应该是 I plan to see a new play
答
是固定结构
PLAN TO DO STH