Honestly, the best way to keep your grammar up to point is to read, read, and then read a little more! In the meantime, have fun with these five tips to further improve your grammar. This sentence refers to the individual efforts of each crew member. The Gregg Reference Manual provides excellent explanations of subject-verb correspondence (section 10:1001). Being able to find the right subject and verb will help you correct subject-verb chord errors. Have you ever wondered why it is said to be very pretty and not very pretty? The answer lies in grammatical rules of concordance or subject-verb. The basic rule is that the singular obstruction must correspond to singular nouns, while the plural obstruction must correspond to plural nouns. .