This document discusses how to use "have to/has to" and "don't have to/doesn't have to" to express obligations and lack thereof in English. It explains that "have to/has to" are used to indicate something that is obligatory, while "don't have to/doesn't have to" suggest something that is not required. Examples are provided to illustrate the proper usage of these phrases with different subjects. A comparison is also made between "have to/has to" and "must", noting they have similar meanings, as well as between "don't have to/doesn't have to" and "must not".

2. Let’s Learn
• to state obligations

3. We will learn ...
• How to use “have to / has to”, and “don’t have to /
doesn’t have to”, to state obligation

4. have to / has to
ü have to / has to digunakan untuk
menunjukkan kewajiban untuk melakukan
sesuatu.
ü This is my medicine. I have to take it four
times a day = Ini obat saya. Saya harus /
berkewajiban meminumnya empat kali
sehari.

5. have to / has to
q You can take any snacks from the canteen, but you have to pay for
it.
q Students have to pray before the lesson begins.
q Abdul will observe stars. He has to use a telescope.
q Annabelle wants to have Facebook, so she has to create a
Facebook account.
The pattern is
S + have to / has to* + V1

6. Notes
ü have to digunakan untuk subjek selain orang ketiga tunggal (I, you,
we, they)
You have to wear a sport outfit for PE (Physical Education).
ü has to digunakan untuk subjek orang ketiga tunggal (he, she, it)
Via has toothache. She has to go to a dentist.

7. don’t have to / doesn’t have to
ü don’t have to digunakan untuk subjek
selain orang ketiga tunggal (I, you, we,
they)
We don’t have to go to school on Sunday.
ü doesn’t have to digunakan untuk
subjek orang ketiga tunggal (he, she, it)
Ken is piggybacking Sarah, so she doesn’t
have to walk.

8. have to / has to and must
q have to / has to dan must mempunyai makna yang sama.
ü People need food. People have to eat food.
ü People need food. People must eat food.

9. don’t have to / doesn’t have to vs. must not
• don’t have to / doesn’t have to dipakai untuk mengungkapkan sesuatu
yang tidak perlu dilakukan.
• must not dipakai untuk mengungkapkan sesuatu yang tidak boleh dilakukan
atau larangan (prohibition).
You don’t have to wear a watch to school, but you must not wear sandals.
Kamu tidak perlu memakai arloji ke sekolah, tapi kamu dilarang memakai sandal.

10. Let’s practice
• Click here to go to the exercise.

11. Sources
Azar, B.S. and Hagen, S.A. 2006. Basic English Grammar (3rd
Edition). White Plains: Pearson Longman
Murphy, R. 2000. Essential Grammar in Use (2nd edition).
Cambridge: Cambridge University Press
Swan, M. 1995. Basic English Usage. Oxford: Oxford University
Press