Introduction to Prepositions


Prepositions are words that connect a noun or pronoun with another part of a sentence.


This video illustrates prepositions and prepositional phrases.

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Common Prepositions

about because of except of to
above before for off toward
across behind from on under
after below in out until
against beneath inside outside up
along beside into over upon
among between like past with
around by near since within
as down next to through without
at during

Prepositions rarely function alone. They almost always introduce a noun or pronoun, which is called the object of the preposition.

Consider the following sentence:

EXAMPLE: An infographic about income differences by college major is often shown to first-year students.

This sentence contains three prepositional phrases:

Prepositional Phrases Prepositions Objects of the preposition
about income differences about differences
by college major by majors
to first-year students students students

Objects of a preposition can never be subjects of a sentence. This common error is discussed in more detail.


The LearningCurve and pre/post-tests (if assigned) in this unit include questions about prepositions and conjunctions. Make sure you have reviewed information on conjunctions as well.

Don’t forget to work smartly!