Formula of changing singular nouns into plural nouns

The following are common formulas for changing English nouns from singular to plural:

At the end of 1 and -s, add s directly, such as car, dog and book.

2. Add es at the end of -s, -ss, -sh, -ch and -x, such as bus, glasses, brush, church and box.

3. at the end of consonant +y, change y to I and add es, such as baby, party.

4. Homographs: Some words have singular and plural homographs.

5. Irregular type: the plural of some words changes irregularly.

Differences between singular and plural English nouns

1, the singular form indicates the single existence of an entity, thing or abstract concept, and is often used to describe a single object or concept. For example:

A book (a book); Dogs; An apple (an apple) happiness (happiness)

2. The plural form indicates the existence of multiple entities, things or abstract concepts, and is often used to describe two or more objects or concepts. For example: books (some books); Dogs (these dogs); Apples (some apples); Happiness (some happiness)

It should be noted that plural nouns may change according to different laws, such as adding suffixes such as -s, -es and -ies, or making some irregular changes. Therefore, in English learning, we should not only master the singular and plural forms of nouns, but also be familiar with various changing laws.

In a sentence, the singular and plural forms of nouns usually match the forms of other words to maintain the grammatical consistency of the sentence. In addition, the singular and plural forms of nouns may also affect other grammatical elements, such as the form of verbs and the choice of pronouns. In short, the singular and plural forms of nouns are used in English to express the differences in quantity. Correctly understanding and using these forms is very important for effective language communication.