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A vs. An: When to Use Indefinite Articles | Merriam-Webster
'A' and 'An': Which Gets Used Where | Merriam-Webster
The indefinite article: 'a' and 'an' - LearnEnglish
A, an, and the: how to use articles in English - About Words ...
A/an and the - Grammar - Cambridge Dictionary
Indefinite Articles: A and An | Grammarly
How do you know whether to use "a" or "an"? - Encyclopedia Britannica
grammaticality - When should I use "a" versus "an" in front of a …
A vs. An: When to Use A or An in a Sentence - Writing Explained
Anne with an E (TV Series 2017–2019) - IMDb