Japanese phrase
心配です。 shin pai de su
Meaning
I am concerned.
When to use it
States that something causes concern. It is a polite expression used when a situation or person may have a problem.
Example dialogue
お母さんはまだ帰ってきていないんですか？ o haha sa n wa ma da kae tte ki te i na i n de su ka
Has your mother not come home yet?
はい、帰りが遅くて、心配です。 ha i kae ri ga oso ku te shin pai de su
Yes, she is late, so I am concerned.