linking verbs

hi

What are linking verbs?

[Casiopea]

Linking verbs:

1. Forms of the verb to be (am, are, is, was, were, etc.)
2. Verbs related to the five senses (look, sound, smell, feel, taste)
3. Verbs that reflect a state of being (appear, seem, become, grow, turn, prove, remain).

A linking verb connects a subject and its complement. There are two kinds of complements: noun complements or an adjective complements.

Examples:

Those people are all professors. NOUN COMPLEMENT
Those professors are brilliant. ADJECTIVE COMPLEMENT
This room smells bad. ADJECTIVE COMPLEMENT
I feel great. ADJECTIVE COMPLEMENT

Verbs that reflect a change in state of being are sometimes called resulting copulas. They link a subject to a predicate adjective:

His face turned purple.
She became older.
The milk has gone sour.
The crowd grew ugly.

SOURCE Grammar and Writing Index

[Tdol]

The verb 'be' is not only a copula verb- in prgressive forms and the passive, it is an auxiliary verb.

[RonBee]

Copula Verb
http://www.usingenglish.com/glossary/copula-verb.html