Hey Wang Yiwu, I shall provide you with an explanation about the usage of the verb ''bother''. Firstly, you should know that there is no such difference between ''bother to (do something)'' and ''bother (doing something)''. Both constructions have the same meaning, which is ''to make the effort to do something.'' E.g.: [ + to infinitive ] ''He hasn't even bothered to write.'' E.g.: [ + -ing verb ] ''Do not bother making the bed - I'll do it later.'' E.g.: [ + -ing verb or + to infinitive ] ''You might have found your cell phone if you had bothered looking/to look (for it). Here are some other examples that may help you: ''I do not know why he bothers to bet - his horses always come in last. ''Why bother getting up at all when you don't have a job to go to? ''She didn't even bother to help us.'' ''Do not bother cooking dinner tonight - I'll order out for some pizza.'' *NOTICE: You might just as well use the expression ''can't be bothered doing/to do something'' when you want to state that you are not willing to make the effort (to do something). However, you should know that this expression is more commonly used in Informal British English. E.g.: ''I can't be bothered to iron my clothes.'' E.g.: ''I got home so late yesterday that I could not be bothered cooking dinner.'' E.g.: ''I can't be bothered to clean all those dishes after dinner, so I'll just leave them in the sink until the morning.'' Hope that helps!!!

I think there isn't really a difference. They are interchangeable. I use "bother to do" more than "bother doing", but both are good!

'Bother to' doesn't really make much difference. The difference between 'to do' and 'doing' is the tense. 'Doing' is a continuous tense, so would typically be used for things that would take a longer time.