Example 1...(Many people use bamboo screens) that roll up and down.
Is the part in parentheses a subordinate clause?
No, that's the main clause.
To determine if the part in parentheses is a subordinate clause, we need to understand the characteristics of a subordinate clause. A subordinate clause is a type of dependent clause that cannot stand alone as a complete sentence because it does not express a complete thought.
In the given sentence, "(Many people use bamboo screens) that roll up and down," the part in parentheses can indeed be classified as a subordinate clause. This is because it begins with the relative pronoun "that" and provides additional information about the noun "bamboo screens." It is dependent on the main clause "Many people use bamboo screens."
To verify this, you can identify the subject and verb within the parentheses. The subject is "that," and the verb is "roll." Since the subordinate clause "that roll up and down" cannot stand alone as a complete sentence, it supports the main clause and functions as additional information or a dependent clause.