I have a bad habit "of" watching TV too much.

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What is the role of "of"? Is 'a bad habit' and 'watching TV too much' in apposition?

No, they're not in apposition. The phrase "watching TV too much" is a gerund phrase, serving as object of the preposition "of" -- and the whole prepositional phrase is serving as an adjective describing "habit."

http://www.chompchomp.com/terms/gerundphrase.htm

http://www.chompchomp.com/terms/prepositionalphrase.htm

The word "of" in the sentence "I have a bad habit of watching TV too much" serves as a preposition, indicating a relationship between the noun phrase "a bad habit" and the verb phrase "watching TV too much."

In this sentence, "a bad habit" and "watching TV too much" are not in apposition. They are not serving the same grammatical function or referring to the same thing.

To understand the sentence structure better, let's break it down:

- "I" is the subject of the sentence, referring to the person who has the habit.
- "have" is the main verb, indicating possession.
- "a bad habit of watching TV too much" is the object of the sentence. It consists of two parts:
- "a bad habit" is a noun phrase, with "habit" being the noun modified by the adjective "bad."
- "of watching TV too much" is a prepositional phrase that further describes the habit. The noun phrase "watching TV too much" is the object of the preposition "of," indicating what the habit is about.

So, to summarize, "of" introduces a prepositional phrase that describes the nature of the habit, and "a bad habit" and "watching TV too much" are not in apposition.