As a linguistic expert, I've spent years studying the intricacies of language, focusing on the subtleties of verbs, particularly linking verbs. The question you've posed is a nuanced one, touching on the nature of the verb "to be" and its role within the framework of English grammar.

The verb "to be" is a unique and essential part of the English language. It is a linking verb, also known as a copular verb, which links the subject of a sentence to its complement, providing a state of being or condition. The various forms of "to be" include "am," "is," "are," "was," "were," "has been," "are being," "might have been," and so on. These forms are used to indicate different tenses and subjects.

Linking verbs are different from action verbs. Action verbs, such as "run," "jump," or "write," describe activities or actions. In contrast, linking verbs do not express action but instead serve to connect the subject to additional information about it. The key to identifying a linking verb is to see if the sentence still makes sense when you substitute the verb with forms of "to be." If the sentence remains coherent and logical, you likely have a linking verb.

For example, consider the sentence "She becomes a doctor." Here, "becomes" is a linking verb because it connects the subject, "she," with the additional information about her state or condition, which is "a doctor." If we substitute "becomes" with "is," the sentence reads "She is a doctor," which still makes sense and maintains the same meaning.

On the other hand, if you have a sentence like "He runs a marathon," the verb "runs" is an action verb because it describes the action of the subject. If you substitute "runs" with "is," the sentence becomes "He is a marathon," which clearly does not make sense, indicating that "runs" is not a linking verb.

It's also important to note that some verbs can function as both action and linking verbs depending on the context. For example, "He lies on the bed" uses "lies" as an action verb, describing the action of reclining. However, in the sentence "He lies in the north," "lies" is a linking verb indicating location.

In conclusion, the verb "to be" in any of its forms is always a linking verb, and understanding its use is crucial for mastering English grammar. Recognizing linking verbs and distinguishing them from action verbs can greatly enhance one's ability to construct clear and accurate sentences.

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The following verbs are true linking verbs: any form of the verb be [am, is, are, was, were, has been, are being, might have been, etc.], become, and seem. These true linking verbs are always linking verbs. ... If, after the substitution, the sentence makes no sense, you are dealing with an action verb instead.read more >>