Redundancies such as a double negative (don't have no) or the reason why is because are noticeably wrong.
In business or technical writing, stay away from is is and does is, as in "What it is, is larceny." Instead, eliminate the introductory clause and go with "It is larceny." Instead of "What this does is it gives you another option for…" go with "This gives you another option for…."
When explaining reasons for something, go with "The reason is that…" or "You do this because…" to avoid incorrect redundancy.
Hidden redundancies occur with abbreviations: CRT tubes, LCD displays, and PIN number all have a repeated meaning: the T stands for tube, the D for display, and the N for number.
Eliminate redundancies from your writing for enhanced clarity and conciseness. And remember to watch out for redundancy when you are using your PIN number at the ATM machine and you reflect back on your past experience with new innovations.
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