A simple sentence contains at least one subject and one predicate

Subject (the “who” or the “what” of a sentence) + Predicate (what the subject is or does) (The verb) Formula: (SV)

*A simple sentence is also referred to as an independent clause

The tall palm trees gently swayed in the wind.

Trees is a simple subject it’s just the noun or pronoun

The tall palm Trees are the complete subject it is the pronoun or the noun and all of its modifiers

Swayed is a simple predicate this is just the verb

gently swayed in the wind this is the verb and all of its modifiers