A / An
Use it for one item, any item, or something mentioned for the first time.
Rule
Use a/an only before a singular countable noun. A comes before a consonant sound, and an before a vowel sound.
Formula
| a | before a consonant sound | a doga cara university (u = [ju], a consonant sound) |
|---|---|---|
| an | before a vowel sound (a, e, i, o, u) | an applean eggan umbrellaan hour (h is silent) |
Notes
- Only with singular countable nouns
- For plurals and uncountable nouns, use some or no article