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[Divide students into groups. Give each group a sheet with the sentences on them. The groups have to bet on which sentences are correct, and which ones are not. (It's also possible to do this game as a grammar auction, where students bid on correct sentences, but I find the game usually moves quicker if students bet.) I start each team off with ten points. No team is allowed to bet more points than they have at the time. If they get the answer right, they double their bet. If they get the answer wrong, they lose their bet.
After the betting game has finished, I distribute the rules for forming modals and semi-modals. Students then have to examine the incorrect sentences and decide why they are incorrect--matching the rule number to the incorrect sentence.]
Is this sentence correct?
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Yes
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No
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How many points do you bet?
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1. He can plays soccer.
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Yes
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No
|
How many points do you bet?
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2. We can should do this.
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Yes
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No
|
How many points do you bet?
|
3. I have to come home early.
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Yes
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No
|
How many points do you bet?
|
4. You must do this.
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Yes
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No
|
How many points do you bet?
|
5. We can do this and we should do this.
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Yes
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No
|
How many points do you bet?
|
6. He can play soccer.
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|||
Yes
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No
|
How many points do you bet?
|
7. You do must this.
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Yes
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No
|
How many points do you bet?
|
8. Can he play soccer?
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Yes
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No
|
How many points do you bet?
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9. You mustn’t do this.
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Yes
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No
|
How many points do you bet?
|
10. I can play soccer.
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|||
Yes
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No
|
How many points do you bet?
|
11. You don’t must do this.
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|||
Yes
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No
|
How many points do you bet?
|
12. He cans play soccer.
|
|||
Yes
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No
|
How many points do you bet?
|
13. They should have to fix the car.
|
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Yes
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No
|
How many points do you bet?
|
14. He has to come home early.
|
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Yes
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No
|
How many points do you bet?
|
15. He have to come home early.
|
|||
Yes
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No
|
How many points do you bet?
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16. We can and should do this.
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Yes
|
No
|
How many points do you bet?
|
17. He haven’t to come home early.
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Rules
Modals
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Semi-Modals
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can,
must, should
|
have
to
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1. Modals come before the verb.
You must do this. Not
|
2. The
same. Semi-modals come before the verb.
You have to do this. Not
|
3. The modal is followed by the infinitive form of the
verb (V1).
You must do this. Not
|
4. The
same. The semi-modal is followed by the infinitive form of the
verb (V1)
You have to do this. Not
|
5. When using a modal, there is no 3rd person “s” on the main
verb.
He plays soccer. He
can play soccer. Not
|
6. The
same. When using a semi-modal, there is no 3rd person “s” on the main
verb.
He has to play soccer. Not
|
7. The modal does not use a 3rd person “s”
He plays soccer. He
can play soccer. Not
|
8. Different. The
semi-modal "have to" changes to "has to" with a 3rd
person "s".
I have to play soccer.
He has to play soccer. Not
|
9. Two modals cannot be used together unless there is an “and”
in between.
We can and should do this.
Not
|
10. Different. The semi modal "have to" can
follow another modal.
They should have to fix the car. Not
|
11. When making a negative sentence, the “not” is used
after the modal. No other auxiliary
verbs are used.
We must not do this.
Not
|
12. Different. When making a negative with the semi-modal
"have to", the auxiliary verb "don't" is used.
You don't have to do this.
Not
|
13. When making a question, the modal is moved to the
front of the sentence. No other
auxiliary verbs are used.
Can we eat this? Not
|
14. Different.
When making a question with the semi-modal "have to", the auxiliary
verb "do" is used at the front of the sentence.
Do we have to eat this? Not
|
Why is each sentence incorrect? See if you can match each incorrect sentence
with the rule that it breaks:
1. He can plays soccer. Rule Number _______
2. We can should do this. Rule Number _______
7. You do must this. Rule Number _______
11. You don’t must do this. Rule Number _______
12. He cans play soccer. Rule Number: ___________
15. He have to come home early. Rule Number: __________
17. He haven’t to come home early. Rule
Number:_____________
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