Using “A” & “An” in English

USING “a” AND “an”

“a” and “an” are the same article which is “ indefinite article”. Although they are used for same purpose in a sentence, there are some similarities and differences in using of them.

Using “a”:

1. “a” is used in front of singular countable nouns ( a person, animal or thing ) which are not specific.

In other words;

When we use “a”, we do not talk about a specific thing or item. We mention any one of items. It doesn’t matter which one it is.

Examples:

• a train ( we do not talk about a specific train. We mention any one of trains )
• a window
• a cat

2. “a” is not used with plural countable or uncountable nouns.

Examples:

• a love ( wrong ) love ( correct )
• a football ( wrong ) football ( correct )
• a money ( wrong ) money ( correct )

3. If a noun starts with a consonant sound (b, c, d, f, g, h, j, k, etc.), “a” is used before the noun.

Examples:

• a dentist
• a country
• a mountain

4. If a noun starts with a vowel letter, but it’s pronanciation ( sound of the word )  starts with a consonant, ‘a’ is used.

Examples:

• a university ( “u” sound like yu )
• a European ( “e” sound like y )
• a uniform ( “u” sound like yu )

 Attention!!

In english, sounds of the words are important for using articles “a/an”.

The sounds are significant, not the letters.

5. If a noun include adjective or adverb starting with a consonant sound, “a” is used

Examples:

• a nice movie
• a successful man
• a universal language ( “u” sound like yu )

Using “an”:

1. “an” is used in front of singular countable nouns ( a person, animal or thing ) which are not specific.

In other words;

When we use “an”, we do not talk about a specific thing or item. We mention any one of items. It doesn’t matter which one it is.

( Same usage with “a” / Similarity )

Examples:

• an airport ( we do not talk about a specific airport. We mention any one of airports )
• an iceberg
• an election

2. “an” is not used with plural countable or uncountable nouns. ( Same usage with “a” / Similarity )

Examples:

• an education ( wrong ) education ( correct )
• an equipment ( wrong ) equipment ( correct )
• an information ( wrong ) information ( correct )

3. If a noun starts with a vowel sound (b, c, d, f, g, h, j, k, etc.), “an” is used before the noun.

( Different usage with “a” / Dissimilarity )

Examples:

• an umbrella
• an ice cream
• an inspector

4. If a noun starts with a consonant letter, but it’s pronanciation ( sound of the word )  starts with a vowel, ‘an’ is used. ( Different usage with “a” / Dissimilarity )

Examples:

• an hour ( “h” is silent )
• an ‘N’ letter  ( “f” sound like en )
• an x-ray ( “x” sound like ex )

 Attention!!

In english, sounds of the words are important for using articles “a/an”. The sounds are significant, not the letters.

5. If a noun include adjective or adverb starting with a vowel sound, “an” is used. ( Different usage with “a” / Dissimilarity )

Examples:

• an interesting book
• an unusual sport
• an honest man ( “h” is silent )