Final answer:
In the sentence provided, 'Kerry' is the subject, and 'is one of Ireland's twenty-six counties' is the predicate. The subject is the main focus of the sentence, and the predicate provides information about the subject, including the verb and any modifiers.
Step-by-step explanation:
The subject of a sentence is who or what the sentence is about, while the predicate provides information about the subject, often including the verb and any objects or other modifiers. In the sentence 'Kerry is one of Ireland's twenty-six counties,' 'Kerry' is the subject, as it is the main focus of the sentence. The predicate is 'is one of Ireland's twenty-six counties,' as it tells us what Kerry is or is characterized by.
Subjects and predicates are fundamental to understanding sentence structure and ensuring proper agreement between subject and verb. Remember that singular subjects match with singular verbs, and plural subjects with plural verbs, which is a key point in Standard English grammar.