英语中的助动词？

what do you usually do? 前面的do就是助动词
相应的do/does/did都可以做助动词
就是帮助实意动词的词
Do you go want to go there? do就是助动词，go 就是实意动词
再来个否定的， He does not like dancing. does就是助动词，like就是实意动词。