Object of a Preposition

The object of the preposition is the noun or pronoun that comes after the preposition.

Smacker watches from the desk drawer.

(The noun drawer is the object of the preposition from.)

Then Smacker ducks inside it.

(The pronoun it is the object of the preposition inside. The antecedent of the pronoun it is the noun drawer in the previous sentence.)

Prepositional Phrases

Prepositional phrases include a preposition, the object of the preposition (a noun or a pronoun), and any words that modify the object.