One‑Word Substitution – Study Notes
(Uttar Pradesh Police Constable – English Language)
1. Simple Explanation
One‑word substitution is a type of question in which a single word is omitted from a sentence or a passage.
The test‑taker must choose the most appropriate word from the given options that makes the sentence or passage grammatically correct, logical, and stylistically sound.
Example:
“The committee ____ the proposal after the meeting.”
Options:
- rejected 2. accepts 3. rejected 4. accept
Correct answer: rejected (past tense, matches the past‑tense verb “after the meeting”).
Why it matters
- Checks mastery of grammar, vocabulary, and context usage.
- A small word can change the meaning or make a sentence ungrammatical.
- Often appears in higher‑level exams (UPPSC, UPSC, RRB, etc.).
2. Key Points to Master
| # | Concept | What to Look For | Tips |
|---|---|---|---|
| 1 | Tense & Aspect | Does the missing word need to be in past, present, or future tense? Does it need to be simple, continuous, perfect? | Use the surrounding verbs/phrases to deduce the required tense. |
| 2 | Subject–Verb Agreement | Does the verb agree with the subject in number? | If the subject is singular, choose a singular verb form. |
| 3 | Prepositions | Does the sentence require a preposition (at, in, for, by, etc.)? | Match the preposition to the context. |
| 4 | Conjunctions & Connectives | Is the link between clauses missing? | Use and, but, or, so, yet, although, because, while, etc. |
| 5 | Modal Verbs | Does the sentence need a modal verb (can, could, should, would, must, etc.)? | Modals express possibility, necessity, obligation, or probability. |
| 6 | Pronouns & Articles | Should a pronoun or article be inserted? | Check for a missing “the”, “a”, “an”, “this”, “that”, “which”. |
| 7 | Adjectives & Adverbs | Is an adjective or adverb required for description or degree? | Look for words that modify nouns or verbs. |
| 8 | Passive vs. Active Voice | Does the sentence require passive construction? | Convert the verb accordingly. |
| 9 | Idiomatic Expressions | Some options may be idiomatic; choose the natural idiom. | Familiarize yourself with common idioms. |
| 10 | Contextual Fit | Does the word make sense in the broader context of the sentence? | Read the whole sentence, not just the blank. |
3. Worked Example
Question
“The new policy aims ____ the overall safety of the workplace.”
Options
- to enhance
- enhance
- enhancing
- enhanced
Step‑by‑Step Analysis
| Step | What to Check | Reasoning | Decision |
|---|---|---|---|
| 1 | Identify the main verb | “aims” is a linking verb in present tense. | The complement must be a verb phrase that follows aims. |
| 2 | Determine required form | After a verb like aims, we usually use an infinitive (to + base form) or a gerund (verb-ing). | Both to enhance and enhancing are candidates. |
| 3 | Look at the noun phrase | “the overall safety” is a noun phrase. | The complement should describe the aim toward that noun. |
| 4 | Check for subject‑verb agreement | No issue here. | |
| 5 | Evaluate each option | 1. to enhance – infinitive, fits perfectly. 2. enhance – bare infinitive, rarely used after aims alone. 3. enhancing – gerund, also acceptable but less common after aims. 4. enhanced – past participle, wrong tense. | |
| 6 | Pick the best fit | to enhance is the most natural, idiomatic expression. |
Answer: 1. to enhance
Correct sentence: “The new policy aims to enhance the overall safety of the workplace.”
4. Quick Revision Summary
| Area | What to Recall |
|---|---|
| Verb Tense | Past, present, future; continuous, perfect. |
| Subject–Verb Agreement | Singular/Plural consistency. |
| Prepositions | at, in, for, by, with, to, from, on, during, before, after. |
| Modals | can, could, shall, should, will, would, must, might, may. |
| Conjunctions | and, but, or, nor, so, yet, for, because, although, while, if, when, where, after, before, until. |
| Pronouns & Articles | he, she, it, they, this, that, which, the, a, an. |
| Adjectives/Adverbs | Descriptive words; quickly, slowly, extremely, simply, etc. |
| Passive Voice | is/are + past participle (e.g., “was written”). |
| Idioms | break the ice, hit the nail on the head, etc. |
| Contextual Fit | Always read the whole sentence; pick the word that makes sense overall. |
5. Practice Questions (Optional)
-
“He promised ____ the report by Friday.”
a) to submit b) submit c) submitting d) submitted -
“The committee’s decision ____ the public’s trust.”
a) restore b) restored c) restoring d) to restore -
“She has been ____ the project since January.”
a)