want到底什么时候后面要加to,什么时候不加?比如：I want to buy some ciothes,还有：I w

want到底什么时候后面要加to,什么时候不加?比如：I want to buy some ciothes,还有：I w want什么时候加to? i want to go that shop to buy some books为什么加to buy I want to buy some I want to buy a house to live in 为什么后面要加in I want to buy some things ( ) Mary 添to还是for 这两词都在什么时候填 I want some ( ).为什么是“help"?”“to help"不行吗?还有"want"后面不是要跟随“to" 比如play with water是“玩水”的意思,为什么不加the?而I want to buy a car with I want to buy some apples. I want to buy Simon some presents i want to buy some medicine_______my toothache 什么时候动词加to do,例如want加to do.