not set apart with commas
Yes, that's correct. When the past tense is used in an independent clause, the dependent clause usually uses present tense. This creates a sense of harmony and sequence in the sentence.
The elastic clause is the clause that Congress uses to get more power.
The elastic clause is the clause that Congress uses to get more power.
Yes, a comma should be used after the independent clause when it is followed by a dependent clause. This helps to clarify the relationship between the two clauses and improve the overall readability of the sentence.
Yes, you should use a comma to separate a dependent clause and a verb.
The elastic clause is the clause that Congress uses to get more power.
It should be hyphenated if used as a noun clause, but not if used as an adjective
Having
No, it is not. It is a conjunction, used to connect a restrictive dependent clause.* uses that are a preposition are practically unseen in modern English
full credit
"Which" is typically used as a relative pronoun to introduce a relative clause that gives more information about a noun in the main clause. It can also be used as an interrogative pronoun in direct or indirect questions.
Pronouns in the nominative case are used as the subject of a sentence or a clause; also called subjective pronouns.