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Guesses and speculations (must,might, could, can't)
That must be cold!
B.w.t why Is he so wet? what's happened?
He m.u.st have fallen lvo the river, r
We use must, might and can't when we guess and We can also guess and speculate about the past action
speculate about a present situation. or situation that created the present situation.
To do this, we use must/might (not)/can't have +
+
When we guess and speculate about the present
past participle or must/might (not)/can't +
circumstances of the situation we use must/might
have + been + verb + -ing.
+
(not)/could/can't the infinitive or be + verb + -ing.
A guess about a past event
A guess about a present event =
'I'm 99%sure it's true.' 'I'm 99% sure it happened.'
He must have fallen in the river.
That man must be cold. He musthave beenfishing.
He must befeeling uncomfortable.
A guess about a past event or activity
A guess about a present event = 'I'm 99% sure it didn't happen.'
'I'm 99%sure it's nottrue.'
Hecan't havewanted to get wet.
Hecan't bevery happy.
Hecan't befeeling very good. A guess about a past event ='Maybe. It's possible.'
Someone might havepushedhim!
A guess about a present event =
Hemight have wanted to get something out of the
'Maybe. It's possible.'
water.
Hemight needsome help. Hemighthavebeen trying to catcha bigfish.
Itcouldbea fishing competition. Hemight not havebeen in a competition.
Hemight nothaveany dry clothes.
11 o 15.5 Listen.Which three pictures is he . ;ti2 o 15.5 Listen again and answer the question . -
talking about? about pronunciation.Then listen and repeat.
Do we pronounce the 't'inmight be and the 'd'in
couldbe? yes /no
*13 ÿÿ4 Work in pairs.Take turns to make
two sentences about a picturefrom
exercise 11with Itmight be or Itcouldbe.
Can your partner guess the picture?
it might be a cup. it could be a pinte.
is Itthis picture?
yes, that's right.
Unit 15 87
