M a y , m i g h t , c a n
a n d
c o u l d :
p o s s i b i l i t y ( 2 )
Д Compare these sentences:
• I'll write the date of the meeting in my diary, otherwise
I may/might/could forget
it.
(= talking about present or future possibility)
• Jenny's late. She
may/might/could have forgotten
about the meeting. (= talking about past
possibility)
We use
may/might/could
(not 'can')
+ have + past participle
to say it is possible that something
happened in the past:
• I thought I saw Tom in town, but
I may/might could have been
wrong.
• • 'Where's Barbara's camera?' 'She
may/might/could have taken
it with her.'
We use
might/could
(not 'may' or 'can')
+ have + past participle
to say that something was
possible in the past, but we know that it did not in fact happen:
• If I hadn't come along at that moment, Jim
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