Subject-verb Agreement
In this section of the book we’ll focus on a complex concept: subject-verb agreement. Making sure subjects and verbs “agree” with one another (in other words, that they are both singular or both plural) will help readers understand your work. Tt makes sentences — particularly long and detailed ones — easier to read.
Though the topic is complex, don’t fret: you’re probably already pretty good at subject-verb agreement. There are some situations, though, where knowing the rules and being mindful of them will help address some bad writing habits you may have developed.