First, let's look at the use of all. all is usually used to refer to three or more objects or things. It can appear in a sentence as the subject, object or attribute. As a subject, all is usually used with a singular verb to indicate the concept of the whole. For example, "All the students are here." In this sentence, all, as the subject, refers to all students, and the verb uses the singular form are. When used as an object, all comes after a verb or preposition to indicate that the whole is considered or accepted. For example, "I saw all of them." (I saw all of them.) In this sentence, all, as the object, refers to all the people seen. When used as an attribute, all precedes the noun and indicates all the objects or things that the noun refers to. For example, "All the books are on the shelf." Here, all is used as an attribute to modify the noun books.
Next, we discuss the use of both. both is usually used to refer to two objects or things, emphasizing that both have a certain quality or state. It can be used as subject, object or attribute. As a subject, both is used with a plural verb to emphasize their commonality. For example, "Both of the girls are beautiful." In this sentence, both, as the subject, refers to two girls, and the verb uses the plural form are. When used as an object, both is placed after the verb or preposition to indicate that both are considered or accepted. For example, "I like both of them." (I like both of them.) In this sentence, both as the object refers to the two people who are liked. When used as an attribute, both is placed before the noun, indicating that the two objects or things referred to by the noun have a certain quality or state. For example, "Both the apples are ripe." both of them are apples.
In addition, "all" and "both" are used differently in negative sentences. In negative sentences, all usually means "not all," and both means "neither." For example, "Not all the students passed the exam." not all of the students passed the exam. And "Both of them didn't come." In this negative sentence, both is used with 'didn't' to emphasize that neither is present.
To sum up, there is a clear difference in usage and meaning between "all" and "both". all is mainly used to refer to three or more objects or things, and both is mainly used to refer to two objects or things. When using, we need to choose the appropriate pronoun according to the specific context and the object to refer to, in order to ensure the accuracy and clarity of the sentence. Through continuous practice and practice, we can better master the usage of all and both and improve our ability to express English.
The main differences between the indefinite pronouns all and both * are the number of objects they refer to and the situations in which they apply. Here is a detailed explanation of the difference and usage of the two indefinite pronouns:
### Difference
#### Quantity range
- All: refers to three or more people or things, meaning "all" or "all". It can replace or modify the plural form of countable nouns, and it can also modify uncountable nouns.
Example:
- All the students passed the exam. - All the students passed the exam.
- All the water has been drained from the pool. - All the water has been drained from the pool.
- Both: refers to two people or things, meaning "both". It can only replace or modify the plural form of countable nouns, specifically referring to two specific people or things.
Example:
- Both brothers are attending the conference. - Both brothers are attending the conference.
- Both options are equally appealing. - Both options are equally appealing.
#### Usage Features
- Position : Whether all or both, it is usually used as subject, object, predicate, attributive, or appositive in a sentence. As subjects, they are usually placed before the content verb and after the linking, helping, or modal verb.
Example:
- All are welcome to attend the meeting. - All are welcome to attend the meeting.
- They both speak fluent French. - They both speak fluent French.
- with personal pronouns : When all or both is used as an object, it can be combined with of to form the structure "all/both of + personal pronoun object", or it can be directly juxtated with personal pronoun, such as "personal pronoun object + all/both".
Example:
- She invited all of us to her party. - She invited all of us to her party.
- We
