2. a/an the Articles an- with singular noun beginning with a vowel
a – with singular noun beginning with a consonant
the
For singular and plural nouns but the noun have to specific

4. A – one person or one thing
a car
a small car
a small blue car
a woman
a young woman
a beautiful young woman

5. an apple an orange an eggplant
an – “a, e, i, o, u, s” sounds
an apple an orange an eggplant

6. “a” or “an” ? Do you have umbrella? I’d like to buy hat, please
I’ll see you in hour
UWS is university