Objects of Prepositions

Objects of prepositions are used when we know there must be an object after the prepositions.

"Objects of Prepositions" in the English Grammar

What Are Objects of Prepositions?

'Objects of prepositions' are used when there is a preposition in the sentence and the transitive verb needs an object to have a complete meaning. So, the object is governed by a preposition. Here is a tip: you have to know that there must be an object after the prepositions.
Objects are prepositions can be nouns, noun phrases, gerunds, or pronouns.

I went to the church.

The teacher is standing beside your mother.

Noun Phrases or Noun Clauses after Prepositions

If there is a 'noun phrase' or 'noun clause' after a preposition, the whole noun phrase or noun clause is considered the 'object of the preposition.'

I will go to mom's house after picking you up.

He did it with all the enthusiasm he could muster.

Pronouns as Objects of Prepositions

Since the word(s) after a preposition should work as an object, the pronoun after prepositions has to be an objective pronoun. So, the words such as he, she, it, etc, cannot be used as the object of the prepositions. Now check out the table of objective pronouns:

subjective pronouns objective pronouns
I Me
You you
She Her
He Him
It it
We Us
They Them

They arrived after us.

He sat next to me and took a sip of his coffee.

Who or Whom?

Usually, native speakers have no problems using objective pronouns. But sometimes there is trouble when it comes to who and whom. Here is the golden tip: You are supposed to use whom in the place of an object so, use whom after prepositions.

He asked you to talk to whom?!

To whom did you give the keys?

Subject and Verb Agreement

'school' is the object of the preposition 'to'

The object of a preposition cannot be the subject of the verb. So keep in mind that the subject has to agree with the verb, not the object.

A bar of chocolates was on the table.

A bar of chocolates were on the table.

Prepositional Phrase Modifiers

An adverb phrase, adjective clause, or relative clause can be the modifier of a prepositional phrase. Check out the examples:

After nine, which is also after my conference, we can watch a movie together.

Take me to the building that was burned.

How to Find an Object of a Preposition

The object of preposition follows a preposition so any noun, noun phrase, or phrase that follows a preposition is the object of it. Check out the examples.

His brother waited for him in front of the cinema.

Look at the mouse. It is behind you.

Using If and Whether

'If' and 'whether' are used to describe a yes/no question in a declarative form. Remember using 'if' is not possible in sentences with if. As a result, you are just allowed to use 'whether' after the preposition and before the object of the preposition.

We made a decision about whether staying or not.

We made a decision if whether staying or not.


'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.


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