Modal auxiliaries like could, might, should, and would express different possibilities and outcomes in hypothetical situations.
Could, might, should, and would are modal auxiliaries used to express different degrees of possibility or necessity in hypothetical situations.
In the given conversation, 'could' is used to indicate ability or possibility, 'might' denotes a slight chance, 'should' implies advisability, and 'would' suggests a likely outcome in hypothetical scenarios.
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