Like all grammatical "rules," these five usage suggestions have exceptions. Context, audience, and purpose will determine correct usage. And sometimes, there may be a better word choice altogether.
1) Because of/due to: Because of means as a result of; due to means attributable to.
CORRECT: "Because of our experiences..." "The participants' increased knowledge is due to their workshop experiences..."
2) Based on/on the basis of: Using based on at the beginning of a sentence can be problematic because the phrase is often a dangling modifier. For simplicity, use based on following a "to be" verb and on the basis of as an adverbial phrase.
CORRECT: "On the basis of my experience..." "Our conclusions were based on..."
3) While, since/although, whereas: While and since indicate time; although or whereas indicate conditional relationships.
CORRECT: "Although it's sometimes useful..." "Since last year, my writing has improved..."
4) Over/more than: Over is generally used to describe spatial relationships and passage of time; more than is used with numerals, figures, and amounts.
CORRECT: "More than half of the manuscripts..." "Over the past 10 years..."
5) Impact/affect: Affect means to influence; impact means to strike forcefully.
CORRECT: "...errors that affect us..." "The raindrops impacted the soil surface, causing runoff..."
For more resources and information on grammar tips, please contact Jennifer Alexander at jennalex@ksu.edu
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