Commonly misused words

Commonly misused phrases

Redundant words

Common style errors

Double negatives

Casual English


Double negatives

Double negatives are used in English to make a very positive statement, and this is usually not appropriate for a scientific paper. In addition, in Japanese a double negative can actually strengthen the negativeness of a statement, which does not translate into English.

avoid   "Background staining was not seen..."

"No background staining was not seen..."


"No background staining was seen..."

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