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Course: Digital SAT Reading and Writing > Unit 5
Lesson 3: FSS: Plurals and possessivesPlurals and possessives — worked example
Learn the best way to approach a plurals and possessives question on the SAT. To succeed on questions about plural and possessive nouns, you'll need to know the rules for using apostrophes with singular possessive nouns and plural possessive nouns. You'll also need to know the rules for possessive pronouns, and you'll need to be able to distinguish the possessive from a contraction (for example, "it's" versus "its"). Make sure to look for errors with possessives and plurals if the choices add or remove apostrophes or change the placement of apostrophes.. Created by David Rheinstrom.
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- Hi
I got a question for the ones who took dsat: was this version easier than older one ?(8 votes)- Depend on you I guess, I think it's easier because there are no longggg passages. Math don't include Complex and imaginary number now which for me is a huge win.(16 votes)
- Can somebody explain why not C? I got right for watt but not lightbulb's. I know it should be a possessive but I don't understand why it should be lightbulbs'(8 votes)
- watts are used to measure energy comsumption of all lightbulbs,not only one lightbulb's.(7 votes)
- does it's mean - possessive or "it is"(2 votes)
- it's with an apostrophe means it is while its without an apostrophe is possessive(8 votes)
- Why am I the first to comment here(5 votes)
- Question
why "watts" couldn't be owning "measure" ?(1 vote)- You can own nouns, but not verbs. While you can see the word "measure" as a noun sometimes, like in the sentence: "A mile is a measure of distance", here it's being used as a verb, like in: "I measured this book with a ruler". A verb can't be possessed, but a noun can, so "watt's" is wrong, allowing us to rule out options A) and D).(4 votes)
- Can somebody explain why not C? I got right for watt but not lightbulb's. I know it should be a possessive but I don't understand why it should be lightbulbs'(1 vote)
- This is because C means lightbulb is singular. However, the lightbulb part of the blank has be plural because there is no article before it. If the correct answer was C, then option C would have had to say, "watts measure a lightbulb's"
However, since it lacks an article, we know that it's plural: "lightbulbs"
Now to make that possessive, we just add an article.
Does that help/make sense?(3 votes)
- Can somebody explain why not C? I got right for watt but not lightbulb's. I know it should be a possessive but I don't understand why it should be lightbulbs'(1 vote)
- Bro how's it not C!?(1 vote)
- I thought that it was C. What?!(1 vote)
- Why is it now C(1 vote)
Video transcript
- [David] Hey, test takers, David here. We're looking at this question from the Reading and Writing test. If you'd like to try this one on your own before I work through it with you, go ahead and pause the video now. Okay, let's do this. Frequently misinterpreted by consumers, blank energy consumption,
not their brightness. The brightness of a bulb is
actually measured in lumens. Which choice completes the text so that it conforms to the
conventions of Standard English? Okay, so when a question asks us about the conventions of Standard English, it's asking us about grammar, but which grammar convention
is being tested here? Let's look at the choices. So these are all different
versions of the same phrase with apostrophes in different places, and that tells us, and drum roll please, that this is a question about
plurals and possessives. Ultimately, what these questions are about is where do you put the apostrophe? Knowing the rules around forming plurals and possessives in
English is the key here. Only one of the choices
will be free of errors and that's your answer. So let's review how to form
plurals and possessives. A plural is just another way of saying more than one of a thing. One pineapple, two pineapples, right? You usually add an S to make a singular noun
into a plural noun. There are exceptions, of course, like mouse and mice, goose
and geese, sheep and sheep, but the SAT doesn't
generally get into those, so we won't get into them much here. Possession, that's owning things. Grammatical possession for
nouns requires an apostrophe and this is where it gets complicated. If we're talking about a singular noun, you just add an apostrophe and an S. The pineapple's smell, and that's true even if the
singular noun ends in an S. The rhinoceros's horn. But if we're talking about a
plural noun that ends in an S, you show possession by adding
an apostrophe after the S. So the pineapples' smell, the rhinoceroses' horns. For plural nouns that don't end in an S, like children or mice,
we use an apostrophe S, just like we would with a singular noun. The children's party, the mice's tails. Finally, there are possessive pronouns which never ever use apostrophes. This includes words like
mine, yours, ours, his, hers, theirs, and its, no apostrophes. Whose pineapple is that? That pineapple is hers. I don't know why I'm so
fixated on pineapples today. The point is this. These are the rules that you
need to hold in your head when you take on one of these questions. Any choice that breaks any of
these rules can be eliminated. Let's talk strategy real quick. First, restate the
passage in your own words to understand its meaning. This will help you figure out how all of the nouns in the sentence should logically relate to each other. How many things are we talking about, and does any noun belong to another? Once you've got those
relationships figured out, you can make a prediction about what form the
nouns are going to take. Will they be possessive,
or plural, or neither? Any choice that doesn't
do exactly what you want will contain some kind of grammar error and can therefore be eliminated. The key here is, like I said, to understand the apostrophe rules so you can quickly identify those errors. So with that in mind, let's
head back to our question. Let me refresh our memory on this question and then restate it. Frequently misinterpreted by consumers, watts measure lightbulbs'
energy consumption, not their brightness. The brightness of a bulb is
actually measured in lumens. So what's being
misinterpreted by consumers? Watts are. What do they do? They measure the energy
consumption of lightbulbs and not their brightness. So the plural verb conjugation measure tells us we want plural watts, right? Multiple watts measure. One watt measures. What comes after the blank
belongs to the lightbulbs, their brightness, their
energy consumption. So lightbulbs should be
both plural and possessive. It owns both brightness
and energy consumption. So we're looking for plural
watts, no apostrophe, and plural possessive lightbulbs, so an apostrophe after the S. That's my prediction. Let's go through them. Choice A, possessive-singular watt, possessive-singular lightbulb, no good. Choice B, plural watts, yes. Plural possessive
lightbulbs, boom, that's it. That's the one. Normally, on test A, I'd
say we're done, move on. But let's keep going just to see. Choice C. Plural watts, good so far. Singular possessive lightbulb. Now, we're not talking about one lightbulb in this first sentence. We're talking about multiple
lightbulbs, so no good. Choice D, singular
possessive watt, that's a no. Plural possessive lightbulb. So it doesn't give us
both things that we need. It's no good, cross it off. Okay, time for some top tips. Top tip number one. You need to check all the nouns
in the underlined portion. This question had two nouns
that we needed to check on. Both of them needed to
be either apostrophe or not apostrophe correctly in the answer. Some answer choices might
correctly form one noun but not the other. The other top tip is
beware of its and their. These possessive pronouns
are very easily confused with the contractions it's and they're, which is to say it is and they are. I say again, possessive
pronouns don't use apostrophes. Good luck out there, test takers. You've got this.