Indefinite articles
par Isabel Umanzor
1. a
1.1. When the next word starts whit a consonant sound
1.1.1. -A ball
1.1.2. -A chair
1.1.3. -A pope
2. an
2.1. When the next word starts whit vowel sound.
2.1.1. - An apple
2.1.2. -An hour
2.1.2.1. -An umbrella