Answers and Explanations

What you’ll learn

Check the sixteen review answers and explain the grammar behind each choice.

ពិនិត្យចម្លើយលំហាត់រំលឹកដប់ប្រាំមួយ និងយល់មូលហេតុនៃការជ្រើសរើសនីមួយៗ។

Meaning and use

This page is the answer-review companion to Practice Exercises. If you have not tried that lesson yet, use Previous lesson to attempt it first. The questions below repeat the same sixteen items in the same order, so the numbered explanations match your work. Open the answer box when you are ready. If an answer differs from yours, identify the subject, helper, time, or noun pattern that explains the difference. Then write a new sentence using that pattern.

ទំព័រនេះជាទំព័រពិនិត្យចម្លើយសម្រាប់មេរៀន Practice Exercises។ បើអ្នកមិនទាន់ហាត់ សូមប្រើប៊ូតុងមេរៀនមុន។ សំណួរខាងក្រោមមានដប់ប្រាំមួយដូចគ្នា និងលំដាប់ដូចគ្នា។ ពេលចម្លើយខុសពីរបស់អ្នក សូមអានមូលហេតុ រួចសរសេរប្រយោគថ្មីមួយដោយប្រើទម្រង់នោះ។

Grammar patterns

Pattern	Example or form
Subject agreement	We → are; she + study → studies
A helper requires the base main verb	doesn’t like; did buy; can speak
Irregular forms and quantities	go → went; child → children; much rice
Meaning matters	mustn’t = prohibited; don’t have to = not necessary

Examples

1. We are friends.

   យើងជាមិត្តភក្តិ។

2. She studies English every day.

   នាងរៀនភាសាអង់គ្លេសរាល់ថ្ងៃ។

3. They are playing football.

   ពួកគេកំពុងលេងបាល់ទាត់។

4. I’d like to learn English.

   ខ្ញុំចង់រៀនភាសាអង់គ្លេស។

Everyday conversation

Dara: Why is the answer buy, not bought?

Maly: Because the question already has did.

Dara: Can you make another example?

Maly: Did he buy a book?

Common mistakes

Instead of	Use	Why
Did she bought a new bag?	Did she buy a new bag?	Did carries the past meaning; buy remains in its base form.
He drives careful.	He drives carefully.	Carefully describes the manner of the action drives.

Practice

Try these questions before opening the answers. Write or say each answer.

សាកល្បងឆ្លើយសំណួរទាំងនេះជាមុនសិន មុននឹងបើកមើលចម្លើយ។ អ្នកអាចសរសេរ ឬនិយាយចម្លើយរបស់អ្នក។

1. Complete: We ___ friends.
2. Complete: She ___ English every day. (study)
3. Complete: He doesn’t ___ coffee. (like)
4. Complete using the present continuous: Look! They ___ football. (play)
5. Complete: Yesterday I ___ to the market. (go)
6. Complete: Did she ___ a new bag? (buy)
7. Complete using going to: I ___ study tonight.
8. Complete: There are two ___ here. (child)
9. Complete: This bag is bigger ___ that one.
10. Complete: How ___ rice do we need?
11. Choose for an optional visit: You ___ come tomorrow; it is your choice. (mustn’t / don’t have to)
12. Complete: I’d like ___ learn English.
13. Complete: The class starts ___ eight o’clock.
14. Choose: He drives ___ . (careful / carefully)
15. Complete the usual neutral negative pattern: We don’t have ___ water. (some / any)
16. Complete: She can ___ English. (speak / speaks)

Answers and explanations

Show answers / បង្ហាញចម្លើយ

1. are

   The subject we takes are in the present.

2. studies

   A positive present-simple verb with she changes study to studies.

3. like

   After doesn’t, use the base form like.

4. are playing

   They takes are, followed by the -ing form playing.

5. went

   The irregular past form of go is went.

6. buy

   After did, use the base form buy, not bought.

7. am going to

   With I, this future-intention pattern is am going to + base verb.

8. children

   Children is the irregular plural of child.

9. than

   Use than to introduce the second item in a comparison.

10. much

    Rice is uncountable in this meaning, so use much.

11. don’t have to

    The visit is not necessary. Mustn’t would mean it is prohibited.

12. to

    Use would like to + base verb for an action.

13. at

    Use at with a clock time.

14. carefully

    The adverb carefully describes how he drives.

15. any

    Any is the usual choice in this neutral negative amount statement.

16. speak

    Can is followed by a base verb with every subject.

Quick recap

• Check both the answer and its explanation.
• Match your mistakes to a specific earlier lesson.
• Keep practicing with new sentences; finishing the review is a starting point for using English.