When to use what in a sentence and when to use which where that, etc.

Which is a relative pronoun that can refer to an object or thing, so when the antecedent is a thing or a thing, and there is a lack of object or subject in the clause, which is used.

Where is a relational adverb that is used as an adverbial component in a sentence, so when the antecedent is a place noun and the place adverbial is missing from the clause, where is used.

When the sentence structure of the sentence is it is time followed by the predicative clause, it should be guided by that.

If it is a thing to embellish something, I guide it with what.

A categorical clause cannot be formed into a sentence on its own, but it also has a subject part and a predicate part and is a special sentence, just like a sentence. The difference is that the clause must be guided by a related word.

According to the different grammatical functions of clauses, they can be divided into six categories: subject clauses, predicative clauses, object clauses, copositional clauses, definite clauses and adverbial clauses.

The first four categories are commonly called noun clauses because the functions of subject clauses, predicative clauses, object clauses and copositional clauses in sentences are equivalent to nouns. The function of a definite clause is equivalent to an adjective and is called an adjective clause. Whereas, the adverbial clause function is equivalent to an adverb and is called an adverbial clause.

which is in the clause.

in as a subject or object, as a sentence component.

Which

where is to do place adverbial in the clause, the sentence components should be complete and not missing.

In which can be replaced by where when the table is located, and cannot be replaced in other cases, which is a usage of the preposition in advance.

The difference between which and where is that they play a different role in the clause.

1）.Main sentence + antecedent.

where + subject of the clause + predicate of the clause + object of the clause (where as the adverbial of the place).

2）.Main clause + antecedent + which + clause predicate + clause object (which is the subject of the clause).

or main clause + antecedent + which + subject of clause + clause predicate (which is the object of the clause).

Therefore, when analyzing when to use which, the first thing to look at is whether the clause is missing components.

Example sentence: This is the supermarket which was on fire last week(The subject of the clause is missing, which is the subject of the clause).

this is the supermarket which i went to last week .(The object of the clause is missing, which is the object of the clause).

this is the supermarket where i always go shopping with my friends.(where as a place adverbial).

this is the supermarket in which i always go shopping with my friends.(in which is interchangeable with where).

in which means time is equal to when.

when 英 [wen] 美 [wen].

adv.When; When ..Time.

conj.And then; But; When ..Time.

pron.When;

n.Time.

Translation: When did that happen?

Phrase: When pigs fly is never possible.

Word usage:

The basic meaning of when is "when". It can be used as an interrogative adverb to ask when something has happened or will happen, leading to a special interrogative sentence; It can also be used as a relational adverb to guide restrictive definite clauses, non-restrictive definite clauses, and predicative clauses to express "is.".a matter of time".

When can be used as a subordinate conjunction, to guide the adverbial clause, and to indicate time as "when...", in....When "solution; When expressing a condition, it is used as an "if, if" solution; When expressing contrast, it is used as a "since, take into account" solution. When the subject of the clause guided by when is the same as the subject of the clause, the subject, the verb or the auxiliary verb are often omitted, leaving only the substantive verb or predicate, or rewriting it as a phrase.

When the adverbial clause of time guided by means replaces the future tense with the simple present tense and the present perfect tense instead of the future perfect tense.