should be
This structure indicates expectation or what is supposed to happen.
예문
作物は元気なはずです。
The crops should be healthy.
作業は終わっているはずです。
The work should be finished.
苗は十分に成長しているはずです。
The seedlings should be growing well.
빠른 확인
작물은 건강해야 합니다. 作物は元気な___。