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Hi there, it's still Elizabeth, and we are still working on English 5, Unit 5, Lesson 6.

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So, in my last video, I read you the passage on the first part of page 51 in your English book,

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and now I want to move on, and I want to make this a little lesson about the rest of Lesson 6.

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So if you look about halfway down the page, still on page 51, you'll see a little box diagram.

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And inside it will say modal verbs of obligation.

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So I know that might sound scary or intimidating, or you may have not even learned about it ever before.

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So I just want to make it really easy for you.

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First, I'm going to read what's in the book.

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the examples that the book has given you.

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The lead climber has to wear a harness.

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So this is a have to and must statement,

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which means it is necessary.

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Another example would be the other climber

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must hold the rope.

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So what this is saying is if it has have to or must,

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it is necessary. In the box next to it, it says mustn't, which means it is not permitted.

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Not permitted is another way of saying it is not allowed. They mustn't climb without a helmet,

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which means that the children are not allowed to climb without a helmet.

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If you look to the third column, it says don't have to, which means it's not necessary.

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Climbers don't have to be adults, so it's not necessary for the climbers to be an adult.

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All right, and now I want to tell you about some examples I thought of on my own,

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and I wanna show you how easy it is

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for you to make up your own examples

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so you can practice this at home.

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So, necessary.

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Necessary, just to remind you,

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means you're using must or have to.

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So for example, my example I thought of

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was plants must have air to live.

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That means that the plants need the air to live.

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If it doesn't rain, you will have to water your plants.

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Okay?

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All right, not permitted.

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So this means that you're using the word mustn't.

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You mustn't scream in the classroom.

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So screaming in the classroom, not permitted.

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All right, moving on to not necessary.

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You don't have to give me a birthday present.

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That means it's not necessary

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for you to give me a birthday present.

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But you can also make this into a necessary statement.

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Ta-da!

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So here we have, you have to give me a birthday present.

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So would that mean is this sentence necessary

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or not necessary?

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If you're saying you have to.

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So that means that this is a necessary statement.

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All right, if you wanna practice this at home,

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you can write your own examples

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using things in your own house.

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For example, what kind of chores do you need to do?

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I have to wash the dishes.

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Or I don't have to wash the dishes.

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Or what is not permitted in your house?

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For example, I mustn't run in the house.

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or I mustn't throw the ball at my brother.

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All right, I hope that made it easy.

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Keep practicing this and I will see you in my next video.

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Thank you, bye-bye.