15. A
We use a with nouns that begin
with a cosonant sound. (b, c, d,
f, etc.).
For example:
He’s a baker.
16. AN
We use an with nouns that
begin with a vowel sound. (a, e, i,
o, u).
For example:
He’s an electrician.
17. UNEMPLOYED AND
RETIRED
We don’t use a or an with
unemployed and retired because
that are adjectives.
For example:
Don’t say: I’m an unemployed.
She’s a retired.
We say: I’m unemployed.
She’s retired.