In the following error spotting question, one part of the sentence may contain a grammatical error. Identify the part that is incorrect or choose "No Error": "I always enjoy / to read / books / No Error."

Introduction / Context:
This error spotting question checks your knowledge of verb patterns after the verb "enjoy." Some English verbs are followed by a gerund, while others can take an infinitive. You must decide whether the phrase "enjoy to read" is acceptable or if a different form is needed to make the sentence grammatically correct.

Given Data / Assumptions:

• Full sentence: "I always enjoy (A) / to read (B) / books (C) / No Error (D)."
• Part A: "I always enjoy"
• Part B: "to read"
• Part C: "books"
• We assume the intended meaning is that the speaker likes reading books.

Concept / Approach:
In English, "enjoy" is one of the verbs that is followed by a gerund (verb plus ing), not an infinitive. The correct structure is "enjoy reading," "enjoy playing," "enjoy watching," and so on. Therefore, the phrase "enjoy to read" is incorrect. The error lies in part B, which should be "reading" instead of "to read."

Step-by-Step Solution:
Step 1: Focus on the verb "enjoy" and recall the usual pattern after it. Step 2: Recognise that "enjoy" is followed by a gerund, not an infinitive. Step 3: Identify that "to read" in part B is an infinitive, which is incorrect here. Step 4: Replace "to read" with "reading" to form "I always enjoy reading books." Step 5: Check parts A and C and see that they contain no errors; the only error is in part B.

Verification / Alternative check:
Consider other examples: "I enjoy swimming," "They enjoy listening to music," and "She enjoys cooking." None of these can be correctly changed to "enjoy to swim," "enjoy to listen," or "enjoy to cook." This pattern confirms that "enjoy reading" is the only correct form and "enjoy to read" is a mistake.

Why Other Options Are Wrong:

• A: "I always enjoy" is correct; "always" is a suitable adverb of frequency and the subject verb agreement is correct.
• C: "books" is a suitable object of the verb "reading" and contains no error.
• D (No Error): Cannot be selected because there is a clear verb pattern error in part B.

Common Pitfalls:
Learners sometimes think that "to" plus base verb is always safe after any main verb, which leads to incorrect combinations like "enjoy to read" or "avoid to go." It is important to memorise which verbs are followed by gerunds, which by infinitives, and which can take both with a change in meaning. "Enjoy" always takes a gerund, so remembering this can help you score quickly in error spotting items.

Final Answer:
The error is in part B; the correct sentence should read: I always enjoy reading books.