Here's why:
* Adverbial clauses modify verbs, adjectives, or other adverbs, providing information about time, place, manner, reason, purpose, or condition.
* Subordinating conjunctions connect dependent clauses (adverbial clauses) to independent clauses, showing the relationship between them.
Examples of subordinating conjunctions:
* Time: after, before, since, when, while, until
* Place: where, wherever
* Manner: as, as if, as though
* Reason: because, since, as
* Purpose: so that, in order that
* Condition: if, unless, though, although
Here are some examples of how to use subordinating conjunctions to introduce adverbial clauses:
* Time: *After she finished her homework,* she went to bed.
* Place: *Where the river meets the ocean,* the water is murky.
* Manner: *As the sun set,* the sky turned a brilliant orange.
* Reason: *Because he was tired,* he went to sleep early.
* Purpose: *In order to get a good grade,* she studied hard.
* Condition: *If it rains tomorrow,* we will cancel our picnic.
Remember that a subordinating conjunction will always introduce a dependent clause, which cannot stand alone as a sentence. The independent clause will contain the main idea of the sentence.