B1
used to ask or give permission
Dictionary examples:
May I borrow your superhero cape? I'm late for work. (0.0)
May I use your crystal ball? I can't find my phone. (0.0)
May I borrow your magic wand? I need to clean my room. (0.0)
You may begin. (5.7)
"May I help myself to some more food?" "Yes, of course." (8.1)
Hi, my name's Tiffany. How may I help you? (9.1)
May I be excused, please? (27.9)