ACT Reading: Distinguish Adjective From Adverbial Clauses to Answer Grammar Questions

Adjective clause: modifies a noun. Introduced by "who," "which," "that," "where." Example: "The student who scored highest received a scholarship." (The clause "who scored highest" describes which student.) Adverbial clause: modifies a verb, adjective, or entire clause. Introduced by "because," "although," "while," "if," "when," "where," "since." Example: "The student received a scholarship because she scored highest." (The clause "because she scored highest" explains why she received it.) Understanding this distinction helps you answer reading comprehension questions that ask about sentence relationships and helps you fix punctuation errors on English.

Test: What does the clause modify? If it modifies a noun (answering "which one?"), it is adjective. If it modifies a verb or clause (answering "when?" "why?" "how?"), it is adverbial. This test clarifies the clause type instantly.

Mistake 1: Treating adjective clauses like adverbial clauses (or vice versa) when punctuating. Adjective clauses are sometimes nonrestrictive (need commas) and sometimes restrictive (no commas). Adverbial clauses are always dependent and usually need a comma or semicolon depending on placement. Mistake 2: Misidentifying the modified word. (Is the clause describing a noun or a verb?) Mistake 3: Confusing "where" (adjective, describes a place noun) with "where" (adverbial, describes a location or situation). Avoid these three mistakes and clause punctuation becomes clear.

Mark every clause in an ACT Reading or English passage. Label it "adjective" or "adverbial." This habit trains your eye to see clause functions.

Identify ten clauses in ACT Reading or English passages. For each, write "adjective" or "adverbial." Explain what word the clause modifies. Check your answers. This drill teaches you to recognize clause types quickly, a habit that improves both reading comprehension and English grammar questions.

Do this drill once per week for two weeks. By test day, clause functions will be obvious.

Understanding clauses improves reading comprehension (you see how ideas connect) and English grammar accuracy (you punctuate correctly). One or two clause-related questions per section can raise your combined Reading and English scores by 1-2 points each.

This week, learn to distinguish adjective from adverbial clauses. By test day, clause functions will be a strength, not a weakness.