This indicates a strong expectation or probability based on logical reasoning or information. It means "it ought to be" or "it is expected to be." Attach to plain forms of verbs, adjectives, or nouns (with の). Example: 明日、晴れるはずです (It should be sunny tomorrow).

何かの根拠に基づいた強い確信や推量を表します。「〜のはずがない」で否定も。動詞・い形容詞・な形容詞（な）・名詞（の）の普通形に続きます。