Sunday, October 30

Continued Lesson:

Have to" and "Must" can be used interchangeably. They mean the same thing.

  • I must pay my phone bill. (formal)

  • I have to pay my phone bill. (Informal)

This is the online practice for this week: You must follow these steps.

  1. Go to app.formative.com

  2. Enter this code to join the class: 25DLW3

  3. Sign up for a STUDENT ACCOUNT using your Google Account information. You will see this week's practice there.

Sunday, October 23

Focus: Comparing "Don't have to" and "Mustn't"

Main ideas:

"Have to" and "Must" can be used interchangeably. They mean the same thing.

  • I must pay my phone bill. (formal)

  • I have to pay my phone bill. (Informal)

"Don't have to" and "Mustn't" are not interchangeable. They don't mean the same thing.

Use "Mustn't" to mean "Cannot".

  • You mustn't walk on the grass. You cannot walk on the grass.

  • Slow drivers mustn't drive in the passing lane. *They cannot. IF they do, they may get a ticket.

Use "Don't have to" when the listener has an option.

  • You don't have to work tomorrow if you don't want to. We don't have a lot of business this week. ( You can work, but it's not required)

We also reviewed the difference in: Fewer and Less

Use less for non-count nouns.

  • I must eat less sugar in my diet.

  • I must drink less sweet tea.


Use fewer for count-nouns.

  • I must eat fewer brownies and cookies.

  • I must drink fewer Coca-Colas.

Slideshow from class. This has the answers for the homework that was due today and the notes for today's lesson.


By Wednesday, there will be online practice to complete related to today's lesson.