Objects of Prepositions

The following is a list of word classes that can appear after a preposition and function as its object:

The object of a preposition is most commonly a noun that forms a prepositional phrase with the preposition. For example:

Since the words that come after a preposition should function as an object, the pronoun used after a preposition must be an object pronoun. Therefore, pronouns such as 'he', 'she', and 'it' cannot be used as the object of a preposition.
Now check out the table of object pronouns:

Gerunds can function as objects of the preposition. Take a look at the examples below:

If there is a 'noun phrase' after a preposition, the whole phrase is considered the 'object of the preposition'. For example:

If a noun clause follows a preposition, the whole noun clause is considered the object of the preposition. Pay attention to the examples:

When we want to ask about the object of a preposition, we use question words with prepositions. In these questions, the prepositions appear at the end of the sentence. Take a look at the examples:

Adverb phrases, adjective clauses, and relative clauses can be used to modify a prepositional phrase. Check out the examples:

The object of preposition always follows a preposition. So any noun, noun phrase, or pronoun that follows a preposition is its object. Check out the examples.

'Objects of prepositions' are nouns, pronouns, gerunds, or noun phrases that are used after prepositions as their objects. To find an object of a preposition you only need to find the preposition, the noun or phrase after the preposition is the object.