我想学英语复数怎么说

To form the plural of a word in English, you typically add -s to the end of the word. For example, the plural of "dog" is "dogs," and the plural of "cat" is "cats." There are a few exceptions to this rule, however. For example, the plural of "child" is "children," and the plural of "mouse" is "mice."
Here are a few more examples of plurals in English:
Singular: book Plural: books
Singular: apple Plural: apples
Singular: house Plural: houses
It's also worth noting that some words in English are already in the plural form and don't require any additional changes to be made. For example, "jeans" and "scissors" are both already in the plural form.
If you're having trouble forming plurals in English, it can be helpful to practice with a variety of different words and pay attention to the spelling rules. You can also try looking up words in a dictionary to see how the plural is formed.