Of the errors on the SAT, the idiomatic error can seem to be the most difficult to spot. Though these kinds of errors are particularly tricky, there are some clear steps that can be taken to help prepare for the dreaded error of idiom.
What is an idiomatic error?
Essentially, an error of idiom is a mistake in the word or words, often prepositions, that are used in association with other words, often verbs. An example would be the previous phrase, “used in association with”. It would be incorrect to say “used for association with” or “used in association to”. There are literally thousands of idiomatic phrases in English. For this reason, it can be very difficult to strengthen this particular skill, though there are ways to increase one’s ability to spot an idiomatic error.