1. Use a with nationalities and religions in the singular.
1.1. EXAMPLES -John is an Englishman. -Kate is a Catholic.
2. Use a with names of jobs
2.1. EXAMPLES -John is a doctor. -Mary is training to be an engineer. -He wants to be a dancer.
3. video
4. In English, the two indefinite articles are a and an. Like other articles, indefinite articles are invariable. You use one or the other, depending on the first letter of the word following the article, for pronunciation reasons. Use a when the next word starts with a consonant, or before words starting in u and eu when they sound like you. Use an when the next word starts with a vowel (a,e,i,o,u) or with a mute h.
4.1. EXAMPLES a boy an apple a car a helicopter an elephant a big elephant an itchy sweater an ugly duck a european a university a unit an hour an honor
5. The indefinite article is used to refer to something for the first time or to refer to a particular member of a group or class. Some use cases and examples are given below. Use a to refer to something for the first time.
5.1. EXAMPLES -Would you like a drink? -I've finally got a good job. -An elephant and a mouse fell in love.
