How To Write Example In Parentheses . A word or phrase inserted as an explanation or afterthought into a passage which is grammatically complete without it, in writing usually marked off by brackets, dashes, or commas. in a challenging parenthesis, wordsworth comments on the evil effects of contemporary developme. Gretchen likes coconuts (and fruits). Punctuation Parentheses Apostrophe from www.slideshare.net Parentheses communicate to readers that the material inside the parentheses is not necessary to understand the main sentence, nor is it part of the grammar of the main sentence, but is pertinent enough to be included. It is certainly appropriate to use e.g. in a sentence without deploying parentheses. Don’t use parentheticals when it’s redundant or obvious.