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Modals of speculation, deduction, and probability

Nalleli Romano

Created on March 27, 2025

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Modals of speculation, deduction, and probability

Empezar

Modals of speculation, deduction, and probability in the present and past include "must", "might", "may", "could", "can't", and "couldn't".

Modal Verbs for deduction, speculation and probavility

These modal verbs help us to guess if something is true using the available information. The modal verb we choose shows how certain we are about the possibility.

PRESENT

PAST

Might have or may have: Used to say that something is possible but not certain to have happened. Must have: Used to say that something is very likely or certain to have happened. Couldn't: Used to say that something is impossible to have happened

Might, may, or could: Used to say that something is possible but not certain. Must: Used to say that something is very likely or certain. Can't: Used to say that something is very unlikely or certain not to be true.

Examples: "I might see you tomorrow if you're in the office" "There may be another issue that we don't know about" "I can't find my wallet! I must have dropped it in the taxi" "You must have had a real scare when you saw the crocodile" "He must have been sleeping when the fire started" "I can't find my phone! I must have left it at home" "He didn't answer my texts yesterday. He must have been sleeping by then"

1.Remember

In grammar all the modal verbs are used after the person and before a verb. PERSON + MODAL VERB + NATURAL VERB + COMPLEMENT.