can
could
have to
must
might
should
y
o
ส่uวนบนของฟอร์ม
o
1.p Ted's flight from Amsterdam took more than 11 hours. He
be
e
exhausted
after such a long flight. He
prefer to stay in tonight and get
n
t
some
rest.
h
e
2.d If you want to get a better feeling for how the city is laid out,
o
o
you
walk downtown and explore the waterfront.
r
f
3.o Hiking the trail to the peak
be dangerous if you are not well prepared
r
for
research the route a little more
m dramatic weather changes. You
e
before
you attempt the ascent.
?
W
il
4.l When you have a small child in the house, you
leave small objects
y
lying
around. Such objects
be swallowed, causing serious injury or even
o
death.
u
c
o
5.mDave:
you hold your breath for more than a minute?
e
Nathan:
No, I can't.
t
o
m
6.y Jenny's engagement ring is enormous! It
have cost a fortune.
p
a
7.rt Please make sure to water my plants while I am gone. If they don't get
y
enough
water, they
die.
?
W
o
8.u I
speak Arabic fluently when I was a child and we lived in Egypt. But
l
after
we moved back to Canada, I had very little exposure to the language and
d
forgot almost everything I knew as a child. Now, I
iny the language.
o
u
9.s The book is optional. My professor said we
e
n
d
just say a few things
read it if we needed extra
credit. But we
read it if we don't want to.
10. Leo: Where is the spatula? It
be in this drawer but it's not here.
Nancy: I just did a load of dishes last night and they're still in the dish washer.
It
11. You
be in there. That's the only other place it
be.
take your umbrella along with you today. The weatherman on
the news said there's a storm north of here and it
afternoon.
12.
rain later on this
we pull over at the next rest stop? I really
and I don't know if I
use the bathroom
hold it until we get to Chicago.
13. Oh no! Frank's wallet is lying on the coffee table. He
last night.
14. Ned:
I borrow your lighter for a minute?
Stephen: Sure, no problem. Actually, you
given up smoking.
15. I
have left it here
keep it if you want to. I've
believe she said that to Megan! She
front of everyone at the party last night. She
or had some salad if she didn't like the meal.
insult her cooking in
have just said she was full
16. Do you
chew with your mouth open like that? Geez, it's making me
sick watching you eat that piece of pizza.
17. Mrs. Scarlett's body was found in the lounge just moments ago, and it's still
warm! Nobody has left the mansion this evening, so the killer
someone in this room. It
be
be any one of us!!!
18. Ted: I don't know why Denise starting crying when I mentioned the wedding.
Pamela: It
have been what you said about her brother. Or, perhaps she
is just nervous. After all, the big day is tomorrow.
19.
you always say the first thing that pops into your head?
think once in awhile before you speak?
you
20. I was reading the book last night before I went to bed. I never took it out of
this room. It
be lying around here somewhere. Where
swallowed, causing serious injury or even death.
ส่วนล่างของฟอร์ม
Modal Verbs คืออะไร?
Modal Verbs คือ กริยาช่วย ที่มีความพิเศษตรงนี้มีความหมายในตัวมันเอง
(ปกติกริยาช่วยมีหน้าที่ทาให้ประโยคสมบูรณ์แต่ไม่มีความหมาย)
Modal Verbs ทีต
่ ้องรู้
1. Can/Could = สามารถ
2. Will/Would = จะ
3. Shall/Should = ควรจะ
4. May/Might = อาจจะ
5. Must = ต้อง
6. Ought to = ควรจะ
Modal Verbs ต่างจาก verb ปกติอย่างไร?
it be? be
1. Modal Verbs ไม่ต้องเติม s ไม่ว่าประธานจะเป็นตัวไหน
Ex 1. I will visit Japan next year.
Ex 2. She can speak Italian.
2.
สามารถทาเป็นประโยคปฏิเสธหรือประโยคคาถามได้เลยโดยไม่ต้องใช้กริยาช่วยตัวอื่น
เช่น do, does
Ex 1. Students can’t enter this room.
Ex 2. Can you pass me the sugar?
3. หลัง Modal Verbs ต้องตามด้วย infinitive verbs (verb รูปธรรมดาที่ไม่เติม -ing, -ed,
to, s หรือ es)
Ex 1. I should arrive by lunch time.
Ex 2. You must study hard.
คราวนีม
้ าดูหลักการใช้ Modal Verbs แต่ละตัวกันเลย
Can/Could
รูปปฏิเสธของ Can คือ Can not (Can’t)
รูปปฏิเสธของ Could คือ Could not (Couldn’t)
- ใช้บอกความสามารถ โดย Can บอกความสามารถในปัจจุบน
ั Could
บอกความสามารถในอดีต
Ex 1. He can fix computers. (เขาสามารถซ่อมคอมพิวเตอร์ได้)
Ex 2. When I was younger, I could run marathons without a problem. (ตอนฉันเด็ก
ๆ ฉันสามารถวิ่งมาราธอนได้โดยไม่มีปัญหา)
- ใช้ถามเพื่อขออนุญาต, ให้การอนุญาตหรือไม่อนุญาต, ร้องขอบางสิ่งบางอย่าง,
เสนอการช่วยเหลือ โดย Could มีความสุภาพมากกว่า Can
Ex 1. Can I use this restroom please? (ฉันสามารถใช้ห้องน้านี้ได้ไหม?)
Ex 2. Could you fill in these blanks please?
(รบกวนช่วยกรอกข้อมูลตรงช่องว่างนี้ได้ไหมคะ?)
Ex 3. Can you help me please? (คุณสามารถช่วยฉันได้ไหม?)
Ex 4. Can I carry your bags for you? (ฉันช่วยถือกระเป๋าให้ไหม?)
Ex 5. You can’t smoke in this room. (คุณสูบบุหรี่ในห้องนี้ไม่ได้)
- ใช้บอกสิ่งที่เป็นไปได้หรือเกิดขึ้น โดย Could บอกสิ่งที่เกิดขึ้นในอดีต มีโครงสร้าง
Could + have + past participle (V.3)
Ex 1. It can get very hot there at night. (ตอนกลางคืนมันจะร้อนมาก ๆ)
Ex 2. I could have done it by myself. (ฉันสามารถทามันได้ด้วยตัวฉันเอง)
Will/Would
รูปปฏิเสธของ Will คือ Will not (Won’t)
รูปปฏิเสธของ Would คือ Would not (Wouldn’t)
- Will ใช้บอกสิ่งที่คาดการณ์ว่าจะเกิดขึ้นในอนาคต, บอกความตั้งใจ
Ex 1. I will visit Japan next year. (ฉันจะไปญี่ปุ่นปีหน้า)
Ex 2. We will give you this book. (พวกเราจะให้หนังสือเล่มนี้แก่คุณ)
- Would ใช้พูดถึงเหตุการณ์ที่จะเกิดขึ้นในอดีต, ใช้ขอร้องอย่างสุภาพ,
บอกความต้องการ และใช้ในประโยคเงื่อนไข
Ex 1. I knew that Nid would be successful. (ฉันรู้ว่านิดจะประสบความสาเร็จ)
Ex 2. Would you mind if I asked you to work today?
(คุณรังเกียจไหมถ้าฉันจะถามคุณเรื่องงานวันนี้)
Ex 3. Would you like some milk? (คุณต้องการนมไหม?)
Ex 4. If she came, I would go. (ถ้าเธอมาฉันจะไป)
Shall/Should
รูปปฏิเสธของ Shall คือ Shall not (Shan’t)
รูปปฏิเสธของ Should คือ Should not (Shouldn’t)
- Shall ใช้ในการเสนอแนะ ชี้แนะ เสนอความช่วยเหลือ
Ex. Shall I carry your bags for you? (ฉันถือกระเป๋าให้คุณไหม?)
หมายเหตุ: ในปัจจุบันไม่ค่อยใช้ Shall กันแล้ว
แต่บางครั้งอาจเจอได้ในการพูดอย่างเป็นทางการ และบางเอกสารทางกฎหมาย
สาหรับภาษาอังกฤษในชีวิตประจาวันจะเจอ Shall
มากที่สุดในประโยคคาถามยื่นข้อเสนอ หรือเสนอแนะ ชักชวน ว่า Shall I…? / Shall
we…?
- Should แปลว่า ควรจะ... ใช้ในการแนะนา
Ex 1. Should we take a taxi? (พวกเราควรจะขึ้นแท็กซี่นะ?)
Ex 2. I think you should stop smoking. (ฉันคิดว่าคุณควรเลิกสูบบุหรี่นะ)
May/Might
May และ Might แปลว่า อาจจะ สามารถใช้แทนกันได้ แต่ Might
จะสื่อว่ามีโอกาสเกิดขึ้นได้น้อยกว่า
รูปปฏิเสธของ May คือ May not
รูปปฏิเสธของ Might คือ Might not (Mightn’t)
- ใช้บอกความเป็นไปได้ หรือสิ่งที่อาจจะเกิดขึ้น
Ex. She may be in danger. (เธออาจจะตกอยู่ในอันตราย)
- ใช้ในการให้อนุญาต, ขออนุญาต
Ex 1. May I borrow your phone? (ฉันขอยืมโทรศัพท์คุณได้ไหม?)
Ex 2. You may call me anytime. (คุณโทรหาฉันได้ทุกเวลานะ)
Must
- แปลว่า ต้อง ใช้พูดถึงสิ่งที่ต้องทา สิ่งจาเป็นที่ขาดไม่ได้
Ex 1. I must finish my work. (ฉันต้องทางานให้เสร็จ)
Ex 2. Plants must have light and water to grow.
(พืชต้องมีแสงและน้าเพื่อการเจริญเติบโต)
Ex 3. The show must go on. (ชีวิตต้องดาเนินต่อไป)
- เมื่อเป็นรูปปฏิเสธ Must not (Mustn’t) จะหมายถึง ข้อห้าม, ไม่อนุญาตให้ทา
Ex. You mustn’t drink that. (คุณห้ามดื่มสิ่งนั้นนะ)
Ought to
Ought to แปลว่า ควรจะ เป็นคาที่คนสมัยก่อนใช้กัน ปัจจุบันนี้ไม่ค่อยใช้กันแล้ว จะใช้
Should มากกว่า
Ex. We ought to help the poor. = We should help the poor.
(เราควรจะช่วยเหลือคนจน)
I have no
idea about
computers,
but
John ..... hel
p you.
could
might be able to
would
Q2.
I had some problems repairing the roof by myself, but in the end I ..... do
it without help.
could
was able to
Q3.
The cafeteria was full. I ..... find a seat anywhere.
couldn’t
wasn’t able to
Q4.
You ..... told me it was his birthday. I would have bought him a present.
might have
must have
would have
Q5.
Do you think we ..... take photos in here?
are allowed to
may
Q6.
Don’t call him now. He ..... have got out of bed yet.
might not
should not
would not
Q7.
It ..... be easy for Mary. Her parents died when she was only 4 years old.
can’t
mustn’t
shouldn’t
wouldn’t
Q8.
John’s usually home by now. Where do you think he is? - He ..... late. He
has a big project to finish.
might be working
might work
must work
could work
Q9.
I ..... remember to buy milk on the way home.
have to
must
Q10.
England are going to win the World Cup. - You ..... be joking!
could
must
ought to
would
Q11.
She’s in hospital with a head injury. She ..... wearing her helmet!
can’t have been
could be
must have been
would have been
Q12.
I ..... buy a new computer. This one keeps breaking down.
have to
must
Q13.
How are things? - Ok. They ..... worse!
could be
could have been
would be
Q14.
The test starts at 10.30. You ..... be here until 10.15, but you can come
earlier if you want.
mustn’t
needn’t
Q15.
You ..... tell me what she said. I’m dying to know.
have to
must
Q16.
The boss said that you ..... let me use this computer.
have to
must
Q17.
Why were you late? You ..... be here at 10.30!
should
ought to
were supposed to
Q18.
It was so foggy that I ..... see my hand in front of face!
couldn’t
wasn’t able to
Q19.
He was speaking so softly that I ..... understand a word he was saying!
couldn’t
wasn’t able to
Q20.
I ..... leave now. My parents want me home by midnight. (Both answers
are possible. Which answer is better to express an external compulsion
rather than an internal desire?
have to
must
Q21.
Let’s meet for lunch tomorrow. We ..... discuss our holiday plans.
can
will be able to
Q22.
Yuta played very well yesterday, but in the end I ..... beat him!
could
was able to
Q23.
At first she didn’t want to go with me, but I ..... make her change her
mind.
could
was able to
Q24.
I ..... play golf recently. I’ve been too busy.
couldn’t
haven’t been able to
Q25.
When I was a child we were not ..... to get down from the table until we
had finished all our food.
able to
allowed to
Q26.
Where’s Miho? - I don’t know. She ..... home already.
can have gone
must go
must have gone
would have gone
Q27.
There was no other car involved in the accident. He ..... fallen asleep at
the wheel.
can’t have
must have
would have
Q28.
Why was the science teacher so bad-tempered yesterday? - She ..... a
headache.
may have
may have had
would have
would have had
Q29.
You ..... that! It made her really upset.
didn’t ought to say
ought not to say
ought not to have said
ought to have not said
Q30.
Why didn’t she say hello? - She ..... seen you.
couldn’t have
mustn’t have
ought not to have
Q31.
I ..... going back to England next month. I’m not sure yet.
might be
must be
would be
Q32.
You ..... be serious! The ball was on the line. (With thanks to John
McEnroe, tennis player.)
are not allowed to
cannot
must not
should not
Q33.
The girl ..... convince the teacher that her dog really had eaten her
homework!
was able to
could
Q34.
(Which sign are you more likely to see in a park?) All dogs ..... kept on a
lead!
have to be
must be
Q35.
You ..... helped him. He could have done it by himself!
must have
need have
needn’t
needn’t have
Q36.
Could I ask you to do me a favour? - Of course, you .....!
can
could
Q37.
Do you like my new watch? It only cost $3! - Sorry, you ..... a good watch
for so little money!
can’t have bought
mustn’t buy
shouldn’t have bought
Q38.
I ..... leave now. My parents want me home by midnight.(Both answers
are possible. Which answer is better to express an external compulsion
rather than an internal desire?)
have to
must
Q39.
Are both the following sentences correct? [Read explanation]
This desk is too heavy. It cannot be lifted.
This desk is too heavy. It is not able to be lifted.
Yes.
No, the first sentence is incorrect.
No, the second sentence is incorrect.
Q40.
Are both the following sentences correct? [Read explanation]
As a child I could do anything I wanted.
As a child I once could drive my father’s car.
Yes.
No, the first sentence is incorrect.
No, the second sentence is incorrect.
Choose the right modal verb
1. There are plenty of tomatoes in the fridge. You…………….. buy any.
2. It's a hospital. You …………………….. smoke.
3. He had been working for more than 11 hours. He ……………… be
tired after such haed work. He …………… prefer to get some rest.
4. I ……………. speak Arabic fluently when I was a child and we lived
in Morocco. But after we moved back to Canada, I had very little
exposure to the language and forgot almost everything I knew as a
child. Now, I ……….. just say a few things in the language.
5. The teacher said we …………..
read this book for our own
pleasure as it is optional. But we ……………… read it if we don't
want to.
6. ……………… you stand on your head for more than a minute? No,
I ………………….. .
7. If you want to learn to speak English fluently, you …………….. to
work hard. .
8. Take an umbrella. It ………………… rain later.
9. You ……………………..
leave small objects lying around . Such
objects …………………
be swallowed by children.
10.
People ……………………..
walk on grass.
11.
Drivers ………………….. stop when the traffic lights are red.
12.
………………………..
I ask a question? Yes, of course.