If we are trying to identify the predicate in the sentence, first, we must know the exact definition of it. A predicate is considering part of the sentence or clause in which he is telling the readers what the subject is doing.
In this sentence, the predicate is ''Painted her bedroom'' because it is telling us what the subject ''She' is doing.
Predicate and subject are considered as two main parts of a clause or sentence in English grammar.
