How about:Originally Posted by RonBee
John is the plumber.
The plumber is John.
Predicate Adjective (Describes subject.)
- I am ready.
John is happy.
Sue is sad.
The above sentences can be reversed, thus:
- Ready am I.
Happy is John.
Sad is Sue.
While the previous sentences are unlikely, they are possible. The predicate adjective can change places with the subject.
Predicate Nominative (Defines subject.)
- John is a plumber.
Mike is a vet.
Richard is a teacher.
Cas is a Canadian.
The predicate nominative cannot change places with the subject.
Your two sample sentences do not, I think, have the same meaning. Nevertheless, I get your point.Originally Posted by MikeNewYork
(Feel free to change anything in the original that you think needs to be changed.)
In the sentence I am a good teacher is good a predicate adjective?