9.- When the name of a country or stat includes the word OF, the TYPE OF GOVERNMENT, or A PLURAL FORM, or have an ADJECTIVE in the name.
2.- "A" is not used before a noncount sound.
3.- Before a consonant or consonant sound.
4.- Before singular count nouns when the no un is mentioned for the first time, or to introduce the subject which has not been mentioned before.
5.- When the singular form is used to make a general statement about all people or things of that type.
6.- With mames of professions.
7.- With expressions of price, speed, and ration, or with certai numerical expressions.
9.- With the expresión A NUMBER OF means SEVERAL or MANY, and takes a plural verb.
8.- When indefinite nouns are mentioned (they are actual things, not symbols, but they are not specifically identified).
1.- Before any nouns, singular, plural, count and noncount.
2.- Before a noun that has already been mentioned,
3.- When it is clear in the situación which thing or person is referred to.
4.- Before a singular noun that refers to a species or group or specific nouns.
5.- Before adjectives usted as nouns, or nationalities.
6.- When there is only ONE of something.
7.- Before a body part in a preposicional phrase that belongs to the object in the sentence, or to subject of a passive sentence.
8.- With proper names of bridges, canals, gulfs, deserts, jungles, forest, oceans, rivers, seas, plural lakes, plural islands or group of islands with a plural name, plural mountain ranges.
1.- Before singular countable nouns that mean ONE.
10.- The expresión THE NUMBER OF refers to the group and tales a singular verb.
11.- When something is commom knowledge.
12.- With mames of geographic regiones.
13.- With mames of universities, colleges, and schools when the name begins with the words University, College, or School.
14.- With the mames of Wars.
15.- With superlative of adjectives.
16.- With words like office, movies, theater.
17.- With the mames of historical documents.
18.- With the mames of ships, trains, airplanes.
19.- In dates when the numer comes before the month.
20.- With decades, centuries, and areas.
21.- Before expressions of time and place.
22.- With mames of museums, and library.
23.- Before ordinal numbers.
1.- Before a vowel or vowel sound.
2.- Expressions of speed.
3.- When indefinite nouns are mentioned (they are actual things, not symbols, but they are not specifically identified).
BY: YAHELI RIVERA RUIZ.