go to sleep中to 是介词,sleep是名词睡眠的意思就像go to the cinema中to 的用法当然go to sleep 是固定搭配,用的时候不用细究至于动词后面能不能加to do 不定式,部分实意动词和部分情态动词后面可以need to do
want to do等等go 后面不可加to do 不定式...
不定式符号 When you go to do something, you move to a place in order to do it and you do it. You can also go and do something, and in American English, you can go do something. Howeve...