What is the simple predicate in sentence The parade has started late?

The simple predicate in the sentence "The parade has started late" is has started.

Here's why:

* Simple predicate: This is the verb or verb phrase that tells what the subject is doing or being.

* Subject: The parade

* Verb phrase: has started (helping verb "has" + main verb "started")

The phrase "late" is an adverb that modifies the verb "started" but is not part of the simple predicate.