Prepositions
If your teacher marks "Prep," determine which error you have made.
1. Prep: Hanging prepositions.
1. Prep: Hanging prepositions. Avoid ending sentences or clauses on prepositions. They make sentences end weakly. To remember the rule, memorize the sentence "Prepositions are weak words to end sentences on." In correcting the error, do not add a redundant second preposition:
AWKWARD: She is the woman he fell eternally in love with.
REDUNDANT: She is the woman with whom he fell eternally in love with.
RIGHT: She is the woman with whom he fell eternally in love.
AWKWARD: The school she graduated from is located in Germany.
REDUNDANT: The school from which she graduated from is located in Germany.
RIGHT: The school from which she graduated is located in Germany.
A preposition that is part of an idiomatic verb phrase (for example, to look up) does not sound as awkward at the end of a sentence; no one says, "Up whose phone number are you looking?" However, with a little imagination a writer can usually find another way to phrase the sentence:
UNNATURAL: I don't know up with how much more I can put.
ACCEPTABLE: I don't know how much more I can put up with.
REPHRASED: I don't know how much more I can stand.
Incomplete infinitives make prepositions hang. Either complete the infinitive or omit it:
AWKWARD: I do what I want to.
RIGHT: I do what I want to do. I do what I want.
Avoid using prepositions as adverbs. Either supply an object or rephrase the sentence:
VAGUE: He went below. CLEAR: He went below the deck. VAGUE: I came after. CLEAR: I followed him.
2. Prep x: omit unnecessary prepositions. Avoid redundant expressions like the ones below. The italicized words should be omitted:
beat up
except for
keep on
sit down
calm him down
exchange back
later on
stand up
clean up
fall down
lie down
start off
climb up
fall over
lift up
start out
close up
finish up
meet up with
stir up
come over to
help out
off of
topple down
continue on
hurry up
open up
tumble down
dressed up as
inside of
out of (the door)
up until
escape from
jump up
return back