Articles: A/An, The

a / an  - with singular countable nouns

“the” – talking about something specific

an – goes before singular nouns beginning with a vowel

a– goes before singular nouns beginning with a consonant

the – goes before a specific singular noun

nothing goes in front of a Proper Name

H – if H is pronounced, it gets an ‘a’, if it is not pronounced and is followed by a vowel, it gets an ‘an’