Which is the predicate adjective in the sentence below?

Snakes have oken been helpful to humen beings.

The predicate adjective in the sentence is "helpful".

In the sentence "Snakes have oken been helpful to humen beings," the predicate adjective is "helpful."

To identify the predicate adjective in the sentence, you first need to understand what a predicate adjective is. A predicate adjective is an adjective that follows a linking verb and describes or modifies the subject of the sentence.

In the given sentence, "have," "been," and "to" are helping verbs, and "helpful" is the main verb. The subject of the sentence is "Snakes," and the linking verb is "have been."

To find the predicate adjective, we need to identify the adjective that comes after the linking verb and describes the subject. In this case, the adjective is "helpful."

Therefore, the predicate adjective in the sentence is "helpful."