Usage of a comma after i.e. and e.g.


I'm a homeschool teacher, and I use a lot of Usbourne books that are British-based. Recently, I wrote a paper for a class, and I used grammarly. In two separate papers, I had used "i.e." and "e.g." However, after researching the use of both abbreviations, I did not use a comma after either abbreviation. In grammarly, it did not show a flag, so I wasn't concerned. However, later, I found an article that talked about using commas after "i.e." and "e.g." Then, in another article, it suggested a comma in American-usage and no comma in British-usage. Finally, the article mentioned in either case, only be consistent with comma usage. Is it grammatically incorrect if I failed to use a comma? I understand the use of an introductory sentence needing a comma: For example, etc. However, I have a Latin background, and Greek and Latin do not use commas in these instances. It is understood as part of the sentence structure. Is it a grammatical issue if you are blending two concepts with separate rules of grammar? Yes, I know you can you "for example" and "That is" instead, but my paper had a word count that I needed to be mindful of.

Anyway, thank you for any suggestions!

comma Usage asked Nov 02 '12 at 16:42 Bonita Whitfield New member

1 answer


Some elements of punctuation differ between British English and American English (as do the spelling of some words and some preposition usages). You need to determine which variant of English is used where you live.


British English predominates in Britain, Europe, Africa, the Middle East, the Indian subcontinent, and Hong Kong. American English dominates most of the Americas, the Pacific Islands, Japan, and Korea. Canada and Australia are special cases. Canada follows most elements of American usage but retains some elements of British usage. Australia generally follows British usage but is being influenced by Americanisms.


You need to pick one and stick with it in all respects (punctuation, spelling, usage). Nothing confuses a reader more than for the writer to pick and choose what "rules" to follow. With a handful of rare usage differences, American English is perfectly understandable to British readers -- and vice versa. However, consistency is key.


You should not apply any of the rules of grammar and punctuation from another language to English. The results will definitely be grammatically incorrect.

link comment answered Nov 02 '12 at 18:04 Jeff Pribyl Grammarly Fellow

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