What is the Predicate adjective John life was difficult He worked hard at home?

The predicate adjective in the sentence "John's life was difficult. He worked hard at home" is difficult.

Here's why:

* Predicate Adjective: A predicate adjective modifies (describes) the subject of the sentence and follows a linking verb.

* Subject: The subject is "John's life".

* Linking Verb: The linking verb is "was".

* Predicate Adjective: The word "difficult" describes the subject "John's life".

The second sentence "He worked hard at home" is a separate sentence and does not have a predicate adjective within it.