should, ought to
This structure indicates a strong expectation or assumption, expressed politely.
예문
お客様は元気なはずです。
The guest should be healthy.
明日、医者が来るはずです。
The doctor should come tomorrow.
この薬は効くはずです。
This medicine should work.
빠른 확인
이 약은 효과가 있을___.