Honestly, itâ€™s just pointless. We donâ€™t really need to know any grammar beyond writing sentences and spelling correctly. Is there any place beyond school where I would need to know how to identify linking verbs, diagram sentences, or identify predicate nominatives? No! Itâ€™s absolutely pointless. We can tell if a sentence makes sense or not. We donâ€™t need to know all those fancy sentence parts! Honestly, beyond the basics, grammar class is pointless.