Linking Verbs connect the subject of the verb

to information about the subject.

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example-

The car looked very shiny and clean.

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am- can be- shall have been- are- could be- will have been- be- has been- could have been- being- have been- should have been- is- shall be- would have been- was- should be- were- will be- would be- (and linking verbs "to be" (senses)