Can I go to the toilet how to say it in English

Do you want to go to the toilet?

...when i/he/she went/go/goes to the toilet

me a moment I'm sorry, I'll leave for a moment. (It's rude to leave halfway, so apologize first). >>>More

The most straightforward: I need to pee;

In a corporate environment, I need to take a bio-break >>>More

I'd likt to go to the washroom.