1. Lo. I know what modal verbs are and can use them to show possibility.

2. WILF
I know that a modal verb is a word that tells you how possible an action is.
I know a modal verb is used with another verb.
I can find the modal verbs in a sentence.
I can identify the modal verb which shows what is most likely to happen.
I can identify the modal verb which shows what is least likely to happen.

3. Green Eggs and Ham

4. Green Eggs and Ham

19. Modal Verbs
could
can
must
may
might
would
will
should
shall

20. Certainty or Possibility?
will
can
could
must
may
might
very likely
very unlikely

21. Certainty / Possibility
Certainty or Possibility?
Sentence
Certainty / Possibility
You will do your homework.
Certainty
Miss Fenton can ice skate.
I might be able to come on Thursday.
Possibility
Mr Bartlett won’t be pleased to see this mess.
It could rain at the weekend.
It may not be ruined.

22. Task: Modal verb indicates certainty = C
Modal verb indicates possibility = P
Sam will persuade grumpy grouch to eat green eggs and ham.
The grouch may end up liking Sam I am after all.
The grouch could eat green eggs and ham on a boat.
Sam I am can be very persuasive.

23. Task: Grouch Modal verb indicates certainty = C
Modal verb indicates possibility = P
Grouch
Sam I am might persuade the Cat in the hat to eat green eggs and ham.
Sam I am will eat green ham and eggs today.
Now the Grouch has tried green eggs and ham he can get some sleep.
You could eat green ham and eggs in a house or with a mouse.

24. Task: Modal verb indicates certainty = C
Modal verb indicates possibility = P