Explain the concept of adverbial clauses of time.

Adverbial clauses of time are dependent clauses that function as adverbs to provide information about when an action or event takes place. These clauses typically begin with subordinating conjunctions such as "when," "while," "before," "after," "since," "until," "as," or "whenever."

The purpose of adverbial clauses of time is to add temporal information to the main clause, indicating the specific time, duration, or frequency of an action or event. They help to establish a chronological relationship between different actions or events within a sentence.

For example:
- "I will call you when I arrive home." (The adverbial clause "when I arrive home" indicates the specific time when the action of calling will take place.)
- "She studied diligently while her friends were partying." (The adverbial clause "while her friends were partying" indicates the duration of her studying.)
- "Before I go to bed, I always brush my teeth." (The adverbial clause "Before I go to bed" indicates the time before the action of brushing teeth.)

Adverbial clauses of time can also be used to express general time relationships, such as habitual actions or repeated events. They provide important context and help to clarify the temporal sequence of actions or events in a sentence.