"Do you speak English?" is good. In an English-speaking country, I suppose it is okay to try asking a question in English directly. It's all good, Mae, not a lot of questions at all :)

Hi Mae, Thanks for your question. I don't think that is a rude question at all. I would say that is a perfectly acceptable question, especially if you are in an English speaking country. The only time I could think of that it might be rude is if you ask the wrong person in a place like France! My only suggestion, and maybe it is because I am half South African and we say this ALL the time haha, would be to say, 'I'm sorry, but do/can you speak English?' or 'Sorry to bother you, but do you speak English?' I hope that helps (",) Nick Teacher

Do you speak english? is the correct way.

I would not say that it is rude it depends on your approach and how you say it. It might be helpful to say 'Sorry/excuse me, can/do you speak English'. In a multilingual country I would use, 'Do you speak English?' Hope this is helpful!

Your questions are not too many and it is not rude to say, "can you speak English" to someone in an English country. However, it is better to say, "Do you speak English?" Regards.