Is it true that Walk work and bark are linking verbs commonly precede a predicate adjective?

That statement is not entirely true. While the verbs "walk", "work", and "bark" can be followed by adjectives, they are not linking verbs.

Here's why:

* Linking verbs connect the subject of a sentence to a predicate nominative (a noun or pronoun that renames the subject) or a predicate adjective (an adjective that describes the subject). Common linking verbs are "be", "seem", "become", "appear", "feel", "look", "sound", "smell", "taste".

* "Walk", "work", and "bark" are action verbs. They describe actions, not states of being. They don't connect the subject to a renaming or descriptive word.

Example:

* Incorrect: "The dog walks happy." (This implies the dog is performing the action of walking in a happy way.)

* Correct: "The dog is happy." (This uses the linking verb "is" to connect the subject "dog" to the predicate adjective "happy.")

However:

You can use these verbs with adjectives in specific cases:

* Adverbs describing the action: "The dog walks quickly." Here, "quickly" modifies the verb "walks", describing how the dog walks.

* Prepositional phrases: "The dog walks on the beach." The prepositional phrase "on the beach" describes the location of the action.

In summary, "walk", "work", and "bark" are action verbs, not linking verbs. While they can be used with adjectives, these adjectives typically modify the action itself, not the subject.