In case leads the meaning and usage of conditional adverbial clauses The difference and usage of as

In the case that the leading word in the definite clause is only used that and not when:

There is a question: I will never forget the day I was born

Analysis: day is followed by a definite clause to modify the antecedent word day, and the adverbial clause is missing in the definite clause, so when

This question can also do the I will never forget the day on whic i was born or i will never forget the day which i was born on, but there is no word after the original question born, which can rule out this situation.

I will never forget the day on whic I was born, here on which=when

Determinative clauses (also known as relative clauses, adjective clauses) refer to a kind of clauses guided by relative words (English: relative word), because the syntactic function of this kind of clause is mostly to be a definite clause, so it was once called an attributive clause (English: attributive clause), this kind of clause can be used as an adverbial and other components in addition to the definite, so modern linguistics often uses the term "relative clause".

In English, definite clauses are mainly constructed by relational pronouns.

1.When the antecedent is an indefinite pronoun such as all, little, anything;

2.The antecedent is preceded by the

only, thevery, thejust, theright, thelast;

3.When the antecedent is preceded by an adjective superlative;

4.When the antecedent word is preceded by an ordered number of words;

5.When the definite clause is in a special interrogative sentence guided by which, who;

6.When the antecedent has both people and things;

7.When the antecedent is used as a predicate in the main clause, or the relative pronoun is predicate in the clause;

8.When there

In sentences that begin with be, the antecedent is a thing or a thing.

The above is just a case where only that is used instead of which.

in case as a phrasic conjunction, which can guide the adverbial clause. In terms of its lexical meaning and grammatical function, two kinds of clauses can be guided. In case guides the purpose adverbial clause as "avoid, prepare, just in case" and other explanations, and leads the conditional adverbial clause to be interpreted as "if, just in case".

In case is an adverbial phrase, often placed at the end of a sentence, indicating a precautionary or preventive measure.

case leads the purpose adverbial clause.

1)he takes a torch in case it gets dark before he returns.He brought a flashlight with him in case he got home after dark.

2)i decided to stay at home just in case my friends came round.I decided to stay at home in case my friends came by accident.

3)i'll make some sandwiches in case you feel hungry on the journey.I'll make sandwiches so you don't go hungry on the road.

case leads conditional adverbial clauses.

1)in case we fail，we won't lose heart.If we fail, we will never lose faith.

2)add more coal in case the weather is cold.If it's cold, add some coal.

3)in case you get home before i do，could you start preparing dinner?If you get home before me, can you get your hands dirty and cook?

when"It is possible to guide the definite clause and the adverbial clause, but the meaning and grammatical structure of the two are different.

1.Determinative clause.

when"The introductory clause is used to modify a noun or pronoun to further explain or describe it. For example:

the day when we met was a sunny day.(The day we met, it was a sunny day.) ）

In this example,"when we met"It is a definite clause that modifies a noun"day", Bei Weizhi explained that this day was the day we met.

2.Adverbial clause.

when"The leading adverbial clause is used to modify the entire sentence stating the time when the action or event occurred. For example:

when she arrived, we had already started the meeting.(When she arrived, we had already started the meeting.) ）

In this example,"when she arrived"is an adverbial clause that modifies the entire sentence and states that the time of her arrival is after we have already started the meeting.

Therefore,"when"The difference between a leading definite clause and an adverbial clause is that they modify different objects and meanings, the adjective clause modifies the noun or pronoun, and the adverbial clause modifies the whole sentence and states the time when the event occurred.

Hope it helps, good luck!