Expresses the ability or conjecture that something may happen but is not certain, meaning perhaps, it might also be....この謎はちょっと不思議かもしれませんが、いくつかのヒントをお伝えしますね。
Verb in た form + 後でN4
Expresses an action that occurs after another action has finished, meaning after....捨てられた後でも再利用されることがよくあります。
Verb plain form + はずですN3
Express certainty based on evidence, meaning definitely..., probably....答えが見えてくるはずです。