Perfect modals

Present a theory

Perfect modals

Let's go!

Check all the items you expect to see in the video

What will you see?

• boats
• beach
• soccer

• fish
• scuba diving suit
• cars
• toys
• palms
• hotel
• dogs
• houses
• tourists
• waves
• fields

• statues
• sculptures

• shore
• hills
• stars
• ocean
• horses
• road
• monkeys
• rocks
• coral reefs
• dance
• vegetation

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Mysterious easter island, chile

Video presentation

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What do you know about this place?

Share in groups

Have you seen, read or listened about it?

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Comprehension

Answer in pairs

1. What is another name for Rapa Nui?
2. What is it famous for?
3. How did the stone figures get there?
4. What theory did Heyerdahl have about the inhabitants of Rapa Nui?
5. How did he prove this was possible?
6. What does DNA evidence suggest?
7. Is the information in the article factual?

Let's GO

What happened?

Do you know?

DEGREES OF CERTAINTY

100%?

DEGREES OF CERTAINTY

100%?

ACTIVE VOICE PERFECT MODALS

Had to , couldn't + have + past praticiple

99 %

Very certain

• The islanders had to have come from Polynesia. Affirmative - Modal like exp.
• Thye couldn't (or can't) have come from Peru.

ACTIVE VOICE PERFECT MODALS

must , must not + have +past participle

95 %

almost certain

The figures must have been very important.They must not have been easy to move.

ACTIVE VOICE PERFECT MODALS

may, might, + not, could + have + past particple

50 %

not certain

• They might (or may) have moved the moai by "walking" them.
• However, they also could have laid the moai flat logs.

PAST MODALS

could have | may have | might have | must have | should have | would have

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ESCRIBE UN TÍTULO AQUÍ

Lorem ipsum dolor

Might have

Speaking practice

Group work

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Must have

must HAVE

Keep on practicing

possible

COULD HAVE

EXERCISE

Complete the sentences based on the facts of each situation

1. It couldn't have been...........
2. It must not have been...........
3. It could have been .................
4. It must have been...................

SITUATION 1

SITUATION 2

1. It couldn't have been...........
2. It must have been...........
3. I suppose It could have been ...

Someone ran into the tree in front of our house. I wonder who did it. FACTS: Stacy has a car and she was driving last night. Beth doesn't have a car and doesn't know how to drive. Ron has a car, but I am pretty sure he was at home last night. Daniel was out driving last night, and today his car has a bug dent in the front.

Myn friend Mark were in the next room with my neighbor. I heard someone playing a very difficult piece on the piano.FACTS: Mark has no musical ability at all, and doesn't play any instrument. Carol is an excellenmt piano player. I don't think my neighbor ply the piano, but I'm not sure.

Time to play

Choose the right option

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PREPARE A SIMILAR CONVERSATION

PREPARE A SIMILAR CONVERSATION

CONVERSATION

1 to 4

Change the details

MODEL

PASSIVE VOICE

PERFECT MODALS

SLIDESHARE

Let's GO

+ 2nd AUXILIARY BEEN

Time to play

Choose the right option

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Thank you

Keep on learning