Subtitles section Play video Print subtitles Doo-doo-doo-doo-doo-doo-doo. Hey, E. I think these are Mr. E's socks or his sock. E, is this yours? Hi. James from engVid. Today I'm going to do a lesson on the apostrophe, specifically about possession. And actually, this sock is mine and I want to thank Giovana, Nathanial, J2 (Joal), and Izis from Brazil because I taught them, and they bought me these beautiful socks. So, give me a second; let me put them on. [Whistles] Speaking of belonging, I want to go to the board and I want to do... We'll explain a couple of ways we use the apostrophe to show possession in three different cases. Okay? So, the apostrophe is used for many things. Contractions - when we say: "don't" or "can't". Okay, you know that one. But this lesson is specifically about possession. If we look at single possession, that means one person owns something, we actually have the thing, the noun (in this case, John), and we add the apostrophe plus "s". This doesn't make it plural. It means, in this case: "John's hat is red." The hat belongs to John. So, by adding this apostrophe "s" it tells us: Not plural, but it does belong to John. Simple enough, right? Add an apostrophe "s", you know it's belonging. This is James' book, and this is actually a really good one because some people will say you can't say: "James'" or "Charles'". If you go to England, you can. Check it out; we have another lesson on that, so do so. But the apostrophe "s" means it belongs to a singular person. Okay? So, when I said: "Mr. E's sock". Next one, let's talk about plurals with "s". Well, okay, we understand what a single thing is with "s", right? But what happens if we have something like a plural, we have two boys and they have red hats, how do we discuss that? Well, simple. Because "boys" has an "s" already, we don't need to add another apostrophe "s". We simply put the apostrophe after the "s". That indicates to us that you can imagine... There's an imaginary "s", if I could. There's an imaginary "s" that goes here, but it's not necessary because we know it's already plural here and it's belongs to. So: "The boys' hats are blue." There are two boys and the hats belong to the boys, so: "The boys' hats are blue." Cool? All right. Let's move on to the next one, and what I want to talk about here is compound plurals. Now, you might be saying: "What's a compound plural?" Well, in this case, we're taking two objects and putting them together. And maybe these two objects share the same thing and maybe they don't, and we can show the difference by how we use our apostrophes. Now, in this case, we're going to look at, well, Bill and Hillary. Okay? Bill and Hillary have a house together. So, if you want to talk about both of them and you don't want to say: "Bill's house is nice. Hillary's house is nice", you can actually say... One and one is the same, if it's the same: "Bill and Hillary's", okay? So: "Bill and Hillary's house is nice." In this case, we're saying these are compounded, this is a conjunction, they're together, that's why it's compound. It's a compound noun; they go together. We put the apostrophe "s" to say it's one unit... Okay? Because it's a compound. And because of that, this one unit has a nice house. Cool? All right. I know, you're smart and you're going: "But James, what if what they have is different; they don't share the same thing?" I'm glad you asked this, grasshopper, because what we're going to look at is an opinion. Opinion, like shoes or socks, can be different. And I'm going to show you that example here, because in this case, we do have a compound. These two things are together, but they are different; they don't share the same thing. In this case, we can see that Barbara is saying: "No", while George is saying: "Yes". We can't say they have the same opinion; we have to say it differently. So, we put an apostrophe "s" here to say Barbara is single and George is single, and it gives the idea that these things are not the same. All right? We might say the opinion is the same, the word "opinion", but what they share in opinions are different, and we illustrate that by saying: "No" and "Yes". And in this sentence: "Barbara's and George's opinions were different." We have the compound, right? They're together, as in joined with a compound, this conjunction, but each opinion is different. So, it could be said: "Barbara's opinion was different." And: "George's opinion was different." That's two sentences. It's complex, but we can make it simpler by making a compound noun and then saying their opinions were different. Cool? Do you like that? So, now that I think you've got it, I'm going to give you a little rule that will help you if you're still a little bit confused, okay? And it's the rule of "of". So, let's go to the board. So, if you can put "of" in the sentence, you need... Sorry. I should have thought about this, but it's "an apostrophe" because it starts with an "a". But anyways, so you need an apostrophe. So, let's use an example: "John's hat is red." Clear. Okay? Now, if you're going: "I'm a bit confused", we can make a sentence, and I don't like it, but you can say: "The hat of John is red." That would make sense, and it'd be okay, but we find, in English especially, that it's better to show the possession through the apostrophe "s". Cool? You could also say: "That hats of the boys are blue.", or: "The boys had blue hats.", or: "The boys' hats are blue." I'll just put "the": "The boys' hats are blue." See that rule? Okay. We could follow it over here, you know: The opinion of George and the opinion of... You get it. We don't have to go through that again. But what we do know... Actually, I shouldn't say you get it because you know we're going to do the test, and when we do the test I'll check to see if you know, and you can see how well you've learned this lesson. Are you ready? Let's go to the board. [Snaps] Let's go to the board. Okay? So, I want to do a little thing before we start; just a tiny, little thing because I want to add into the lesson. What I wanted to mentioned is that right here: When you use words like: "my", "hers", "his", or "theirs", they're called possessive pronouns. You don't add an apostrophe "s" there. You probably know that already, but just in case you don't, I'm just going to give you a quick lesson on that. Right? So, don't add an apostrophe with "theirs" or "hers". You can see there's an "s" here, it's not necessary. They're pronouns that show possession, so it's understood that they belong to someone. All right? "His", "hers", "ours", "theirs", "my". Okay? Now, let's go to the board and we're going to take a look at some sentences. Now, I want to see how well you understand or you've mastered the lesson, because you should be able to know where there is an apostrophe needed or if one's not needed. So, let's go to the board and take a look at the following sentences. "Alices opinion of Toms house was very different to mine'. I thought his house was too expensive, while Alice thought it was cheap. When we arrived at Toms house, both Alices' opinion and my' opinion had changed. I thought of..." Sorry. "I thought all of the rooms colours were great, while she thought only the bedrooms colour was nice." Now, these sentences can lead to some confusion if it's a plural or if it's singular. Right? And who it belongs to, and whether or not it should have an apostrophe. So, the first thing I want to do is identify what we should change. Now, before I get started, if you think you know what you're doing, and some of you do, I'm going to tell you to pause right now, make the corrections, and then you can come back and see how we do. If you don't know or you're not sure, or you... Hey, you just want to play with me, we'll go to the board and I'll explain each one to you. Okay? And then we'll make our corrections down there. So, those of you guys who want to do it by yourself, I'd say stop now. Okay. And the rest of you, let's go to the board. The first thing to show that we've learned the lesson is to identify. So, I'm going to look right here: "Alices opinion". It belongs to Alice, so I'm going to say: "Alices opinion" I think we have to correct, here.