Japanese phrase
よかったら、___しませんか？ yo ka tta ra ___ shi ma se n ka
Meaning
Would you like to ___?
When to use it
A polite invitation to do something. It is friendly and leaves the choice to the other person without creating pressure.
Example dialogue
週末、何をしますか？ shū matsu nan o shi ma su ka
What are you doing this weekend?
よかったら、散歩しませんか？ yo ka tta ra san po shi ma se n ka
Would you like to go for a walk?