Japanese phrase
___もいいですか？ ___ mo i i de su ka
Meaning
May I ___?
When to use it
Asks politely for permission to do something. It is common in everyday situations and sounds respectful without being overly formal.
Example dialogue
ここに座ってもいいですか？ ko ko ni suwa tte mo i i de su ka
May I sit here?
はい、どうぞ。 ha i dō zo
Sure, go ahead.