The document discusses ways to express probability in English using modal verbs and other expressions. It notes that "must" indicates a very strong sense of present or future probability and implies the speaker's opinion. "Should or ought to" can be used if there are sufficient reasons to make an assumption. "Will" can also express assumptions but "would" is slightly less certain. Other options like "probably" and "likely" can also convey probability. The document encourages visiting the channel "ayalasomayajula nageswar rao" on YouTube for more videos on functional and usage grammar.

1. TO EXPRESS PROBABILITY
For Senior
Students.
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2. Do you hear the noise outside?
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3. Why not? It must be the voice of
a child. The child is crying.
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4. I think probably it is hungry and
needs some milk.
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5. Let us expect her mother will
listen to her and come to her
need.
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6. See that woman; she must have
been her mother.
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7. How would you say so?
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8. Her face shows clearly that
motherly affection.
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9. O.k. Leave
the matter. It
is going to
rain. Shall we
have a bet?
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10. Don’t try to play stale tricks on
me. Can’t I see the clouds?
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11. Yes, you ought to have such
type of presence of mind.
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12. Must; should; ought to, going to,
will, would, probably etc. express
probability.
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13. “Must” indicates a very strong sense of
present or future probability. It adds the
additional sense of speaker’s opinion.
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14. “Should or ought to” may be used if
there are sufficient reasons.
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15. “Will” also can express assumptions,
but “would” is a bit less certain. We can
also use probably, likely etc.
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16. Thank you for watching this video.
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