The word disgusting can be classified as a predicate adjective.
A regular sentence with an action verb such as jump, go or cook is composed of:
However, if the verb in the sentence does not represent an action, which occurs with verbs like to be, seem, or like. The main parts are:
The sentence The soup was disgusting, includes a linking verb (verb to be) in past; therefore disgusting is a predicate, not an object.
Moreover, this is an adjective predicate because it describes the soup using the adjective disgusting.
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