Final answer:
In the sentence 'Regular rainfall keeps the soil dark and moist', the subject is 'Regular rainfall' while the predicate is 'keeps the soil dark and moist', providing information about what the subject does or its state.
Step-by-step explanation:
In English grammar, a predicate provides information about the subject in a sentence. For instance, in the sentence 'Regular rainfall keeps the soil dark and moist', the subject is 'Regular rainfall'. The predicate is 'keeps the soil dark and moist', which includes the verb (keeps) and all the words that tell what the subject is or does. The predicate effectively explains the action of the subject or the state of being of the subject.
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