INDEFINITE ARTICLES (A, AN) AND DEFINITE ARTICLES (THE) IN ENGLISH
I. THE ARTICLES A/AN A and AN are used with countable singular nouns : 1) To introduce a thing or person being mentioned for the first time: - I bought a new car. - We saw a good movie yesterday. - She went to a concert last night. - I spoke to a woman two days ago. 2) With job titles: - She's a bank advisor at the city's main bank. - He is an engineer specializing in road and safety issues. - She became a legal expert in a law firm. However, you can omit the article when referring to a single function: He's a headmaster / He's headmaster of Oakland International High School . 3) To express a general statement: - A cat is smaller than a cheetah . - A toothpick is sharper than a fork tine . 4) In a distributive sense, to indicate prices, frequency or speed: - These avocados cost €1 each, or €4 a kilo. - Take one pain relief tablet two or three times a day. - I was driving at 30 miles per hour downtown. 5) After a preposition: - She took advantage of a loophole in th...