3.1 Grammar and Correct Usage
Key Takeaways
- "Each," "every," "either," "neither," "everyone," and "somebody" always take a singular verb, regardless of any plural phrase that follows them.
- Interrupting phrases like "together with" or "as well as" never change a subject's number for verb agreement.
- Distinguish affect/effect, its/it's, your/you're, than/then, and fewer/less by function, not by how the sentence sounds.
- "Who" is a subject form and "whom" is an object form — test by substituting he/him into the sentence.
- Run-ons, fragments, and dangling modifiers are the three sentence-structure errors tested most often; check that every sentence is complete and that introductory phrases logically match the subject that follows.
3.1 Grammar and Correct Usage
On the Civil Service Examination – Pen and Paper Test (CSE-PPT) Subprofessional level, Verbal Ability makes up roughly 35% of the exam, and a large share of those items test correct usage — your ability to recognize grammatically correct English (or point out where a sentence goes wrong). You will typically see three item formats: (1) choose the sentence that is grammatically correct among four choices, (2) identify the error in an underlined or numbered part of a sentence, and (3) fill in a blank with the correct word form. None of these require memorizing grammar terminology — they require you to recognize patterns quickly under time pressure.
This section walks through the grammar rules that appear most often on the CSE-PPT: subject-verb agreement, verb tense consistency, commonly confused word pairs, preposition usage, and sentence-structure errors such as run-ons, fragments, and dangling modifiers.
Subject-Verb Agreement
The basic rule is simple — singular subjects take singular verbs, plural subjects take plural verbs — but the exam tests the cases where it's easy to lose track of the real subject.
- Collective nouns (committee, family, jury, class, team) are usually treated as singular when the group acts as one unit: "The committee has approved the new schedule." They take a plural verb only when members are clearly acting as individuals, though the CSE-PPT generally favors the singular treatment for collective nouns.
- "Each," "every," "either," "neither," "everyone," and "somebody" are always singular, even when followed by a plural-looking phrase. The words that come after "of" do not change the verb.
- Compound subjects joined by "and" take a plural verb: "The mayor and the councilor are attending the session."
- Compound subjects joined by "or"/"nor" take a verb that agrees with the closer subject: "Neither the clerk nor the officers were present," but "Neither the officers nor the clerk was present."
- Interrupting phrases such as "together with," "as well as," "in addition to," and "along with" do NOT make the subject plural: "The director, together with her staff, is preparing the report."
Worked example:
- Wrong: "Each of the applicants have submitted their requirements."
- Correct: "Each of the applicants has submitted their requirements."
The subject of the sentence is "each," which is singular. "Of the applicants" is a prepositional phrase describing which group "each" belongs to — it is not the subject and cannot change the verb's number.
Verb Tense Consistency
When a sentence or paragraph describes a single sequence of events, all the verbs describing that sequence should stay in the same tense unless there is a genuine shift in time.
Worked example:
- Wrong: "The examiner opened the test booklet and reads the instructions aloud."
- Correct: "The examiner opened the test booklet and read the instructions aloud."
Both actions — opening the booklet and reading the instructions — happened at the same point in a past narrative, so both verbs must be in the past tense. Mixing "opened" (past) with "reads" (present) breaks the timeline.
Commonly Confused Word Pairs
These word pairs show up constantly in fill-in-the-blank and error-identification items:
| Pair | How to Tell Them Apart |
|---|---|
| affect / effect | Affect is almost always a verb meaning "to influence" ("The rain will affect turnout"). Effect is usually a noun meaning "result" ("the effect of the rain"). |
| its / it's | Its shows possession ("the office lost its files"). It's is the contraction of "it is" or "it has" ("it's raining"). |
| your / you're | Your shows possession ("your application"). You're is the contraction of "you are" ("you're eligible"). |
| than / then | Than is used for comparisons ("faster than"). Then refers to time or sequence ("finish the form, then submit it"). |
| fewer / less | Fewer is for countable nouns ("fewer applicants"). Less is for uncountable/mass nouns ("less time"). |
| who / whom | Who is a subject, doing the action ("who submitted the report?"). Whom is an object, receiving the action ("to whom should I address this?"). |
A fast trick for who/whom: if you can replace the word with "he/she," use who; if you can replace it with "him/her," use whom. ("Whom did you see?" → "You saw him.")
Prepositions
Certain words pair with fixed prepositions in standard English, and the exam tests whether you know the conventional pairing:
- different from (not "different than")
- responsible for, capable of, interested in, married to
- comply with, consist of, arrive at (a building or event) / arrive in (a city or country)
- compare to (to note similarity between unlike things) vs. compare with (to examine similarities and differences between similar things)
Sentence-Structure Errors
Three structural errors appear repeatedly on the CSE-PPT:
Run-on sentences join two complete, independent thoughts without the punctuation or conjunction needed to connect them.
- Wrong: "The office was closed the staff went home early."
- Correct: "The office was closed, so the staff went home early." (or split into two sentences with a period)
Sentence fragments are incomplete thoughts — often a subordinate clause left standing alone without the main clause it depends on.
- Wrong: "Because the road was flooded."
- Correct: "Because the road was flooded, classes were suspended."
Dangling modifiers occur when an introductory phrase doesn't logically describe the subject that immediately follows it.
- Wrong: "Walking to the office, the rain started to fall." (the rain cannot walk)
- Correct: "Walking to the office, I got caught in the rain."
Exam Strategy
When a correct-usage item asks you to choose the grammatically correct sentence, don't rely only on how a sentence "sounds" — everyday speech patterns can make an incorrect sentence sound natural and a correct one sound stiff. Instead, check each option against the rules above: does the verb match the true subject? Is the tense consistent? Is the right word from a confused pair being used? Is there a complete, properly joined sentence? Working through this checklist is slower per item at first, but it is far more reliable than instinct alone — and with practice it becomes fast enough for exam time limits.
Which sentence is grammatically correct?
Which sentence uses "whom" correctly?