Final answer:
To identify the verbal in an English sentence, one must find words or phrases derived from verbs that function as another part of speech, such as a noun, adjective, or adverb. Without the actual content of 'The Well-Crafted Sentence', we can't give a specific answer to the exercise, but verbals usually come in the form of infinitives, gerunds, or participles.
Step-by-step explanation:
To identify the verbal in the instructions for exercise 7b on page 113 of 'The Well-Crafted Sentence', it's necessary to understand the context provided by the book. Without the actual text, we cannot give a direct answer. However, we can discuss that in English, a verbal is a word derived from a verb that functions in a sentence as a noun, adjective, or adverb. These can take the forms of infinitives, gerunds, or participles.
Based on the previous instructions from the book that focus on identifying basic parts of speech and distinguishing between words and phrases, the likely goal of the exercise is to practice pinpointing these verbals. For instance, in the pattern of '(subject)+(be verb)+(subject complement [adjective])', the be verb is a crucial component to recognize since it often accompanies a subject complement which can be an adjective (serving as an adjective verbal).
If the instruction asks to identify a verbal in a certain sentence, you would look for words or phrases that originate from verbs but fulfill other roles. Assuming exercise 7b follows similar patterns to those in the examples provided, it could involve identifying a word functioning as a noun (noun verbal), as an adjective (adjective verbal), or as an adverb (adverb verbal).