Word Formation questions are among the most straightforward question types in the UP Police Constable Reasoning section — but they are also a common trap for candidates who go by "feel" rather than a system.
The setup is always the same: you are given a source word (say, LANGUAGE) and asked either (a) which of the four options CAN be formed using letters from that word, or (b) which one CANNOT be formed. Your job is to treat the source word as a letter bank — a fixed inventory of letters — and check whether the option word can be "bought" from that bank.
Here is the key insight: every letter in the source word is available exactly as many times as it appears there, and not one more. If the source word has two A's, you can use at most two A's in your answer word. If it has one K, you cannot use two K's.
Think of it like having a bag of Scrabble tiles. The source word is your bag. The option word is what you are trying to spell. You can only spell it if all the tiles it needs are already sitting in your bag — and in sufficient quantity.
Most candidates lose marks here not because the concept is hard, but because they do a rough mental scan and miss one letter. A 12-letter source word like RECOMMENDATION contains 14 letters. Eyeballing that quickly is how errors creep in. The moment you build a reliable checking system, this question type becomes almost free marks — under 30 seconds each.
The two varieties you will see:
In both cases, the correct approach is identical: check each option against the letter bank of the source word and stop the moment you find a violation.
Write out every letter of the source word and mark how many times each appears. You do not need to sort alphabetically — just list and count.
Example: RECOMMENDATION
R - 1
E - 2
C - 2
O - 2
M - 2
N - 2
D - 1
A - 1
T - 1
I - 1
Total: 14 letters, 10 distinct characters. This takes 10–15 seconds with practice.
Take each option word and tick off its letters against the inventory you just built.
Rule 1 — Missing letter: If the option needs a letter that does not appear in the source word at all, it is instantly eliminated. This is the most common trap: EDUCATION needs U, but RECOMMENDATION has no U. Done — EDUCATION cannot be formed.
Rule 2 — Frequency violation: If the option needs a letter more times than it appears in the source word, it fails. Example: KICKER needs two K's and two C's, but KINGMAKER has only one K and one C. Done — KICKER cannot be formed.
In a "cannot be formed" question, once you find the one option that violates Rule 1 or Rule 2, that is your answer. You do not need to verify the remaining three options fully — but in a "can be formed" question, you verify each option until you find the one that passes all checks.
When you are checking options under time pressure, follow this priority order:
Scan for rare or unusual letters first — letters like Q, X, Z, V, U, W rarely appear in source words. If an option contains one of these and the source word does not, it is out immediately.
Check high-frequency letters for count violations — letters like E, N, T, O appear often but the required count may exceed what is available. SELECTION needs S; if the source has no S, done.
Use the remaining inventory — only after clearing the two checks above do you need to go letter by letter.
Candidates consistently catch missing-letter violations (Rule 1) but miss frequency violations (Rule 2). Look at KICKER from the word KINGMAKER. The letters K, I, C, E, R all exist in KINGMAKER — so a hurried scan says "yes, it can be formed." But KICKER needs K twice and C twice. KINGMAKER has K once and C once. The word fails Rule 2.
Every time you see a repeated letter in an option word (double letters like LL, SS, RR, or a letter appearing twice non-consecutively like the two K's in KICKER), pause and count that letter in the source word.
Some questions add the phrase "without repeating any letter" or "using each letter only once." Here, even if the source word has two A's, you may only use A once. This makes the question slightly stricter. The check remains the same in practice — you are still comparing what the option needs versus what the source provides — but treat the source word's inventory as each letter appearing exactly once regardless of actual count.
When you see an option word, first scan it for letters that are rare in the source. The acronym VIRUS stands for the rarest English letters to appear in typical exam source words: V, I (when source has no I), R (sometimes), U, S. In practice, U, V, and S are the most common "killer letters" in UP Police paper options. Before doing any full check, ask: "Does this option have U, V, or S? Does the source word have them?" If no — eliminate instantly. Standard full scan: 25–30 seconds per option. VIRUS scan: 5 seconds per option.
Whenever an option word has a repeated letter — either consecutive (ALLER, KICKER, TENNIS) or split (CLASSIC, APPEAR) — stop and count that letter in the source word before doing anything else. This catches Rule 2 violations that look like Rule 1 passes. For TENNIS from ENLIGHTENING: T, E, N, N, I, S — the S alone kills it, but even if S existed, checking the double-N first would flag: ENLIGHTENING has N three times (E,N,L,I,G,H,T,E,N,I,N,G), so N appears 3 times — TENNIS only needs N twice, which passes. Then you catch S is absent. The point: double-letter check takes 3 seconds and saves you from the most common frequency-violation trap. Full option check without this: 20 seconds. With Double-Letter Alert as step 1: 8 seconds.
For harder source words (12+ letters), physically write the source word on your rough sheet and strike through each letter as you "spend" it on the option. ENCOURAGEMENT → checking COURAGEOUS: strike C, O, U, R, A, G, E, O, U, S — when you reach the second U, you already struck the only U in ENCOURAGEMENT. Stop. This method takes 15 seconds total versus 40 seconds of mental tracking that still produces errors. Use it for words above 10 letters and you will get 100% accuracy on this question type.
In a "which CAN be formed" question, quickly scan all four options for the shortest one with no unusual letters. The shortest option is almost always the correct answer (3–5 letter words like AGE, RACE from a long source). Verify it fast, mark it, and move on. If the exam gives you LANGUAGE and options include a 3-letter word like AGE alongside 4-letter options needing rare letters, the 3-letter word is almost certainly the answer. This reduces your average solve time from 45 seconds to 15 seconds on easy variants.
Memorise the 5 letters that source words most often lack but options love to use: U, V, W, X, S. In UP Police papers, the wrong options almost always fail because of one of these five. When you scan an option and spot any of these, immediately verify whether the source word contains it. If not — instant elimination without reading the rest of the option. This reduces average per-option check time from 20 seconds to 6 seconds for 3 out of 4 options in most questions.
In the exam hall, follow this decision tree:
Read the question type first — "CAN be formed" or "CANNOT be formed"? This changes whether you stop at the first passing option or the first failing one.
Write the source word's letters on your rough sheet (or underline it mentally for very short words).
Scan each option for U, V, S, W, X — the "VIRUS" letters. Does the source word have them? If an option has one and the source does not, cross it out immediately.
Check for repeated letters in each surviving option. If you see a double, count that letter in the source.
For "CAN be formed": the first option that clears all checks is your answer. Stop checking others.
For "CANNOT be formed": the first option that fails any check is your answer. Stop checking others.
If uncertain, do Write-and-Strike on rough paper. Do not guess on this question type — it is systematic and you can always get it right.
Total target time per question: 25–35 seconds.
Why this question: Tests the basic "CAN be formed" variant on a familiar word. Teaches you that the correct answer is usually the shortest, most common sub-word.
Solving path: Write LANGUAGE letters: L, A, N, G, U, A, G, E. Scan options for VIRUS letters — LONG needs O (not present, eliminated), LAMP needs M (not present, eliminated), ARROW needs R and O (not present, eliminated). AGE needs A, G, E — all present in LANGUAGE. Answer: AGE.
Why this question: Tests a slightly longer source word. Shows that even within a 11-letter word, only one option is fully formable.
Solving path: RECOGNITION = R,E,C,O,G,N,I,T,I,O,N. Check MAGIC: needs M and A — M is absent, eliminated. Check NATIVE: needs V — absent, eliminated. Check EMOTION: needs M — absent, eliminated. Check REGION: R, E, G, I, O, N — all present. Answer: REGION.
Why this question: Classic "CANNOT be formed" question. Tests the Missing-Letter Instant Kill method. U is the killer letter.
Solving path: RECOMMENDATION = R,E,C,O,M,M,E,N,D,A,T,I,O,N. Scan each option for rare letters. EDUCATION contains U — does RECOMMENDATION have U? No. Answer: EDUCATION. (Verify others quickly: CREATION — C,R,E,A,T,I,O,N — all present. COMMAND — C,O,M,M,A,N,D — all present. RECOMMEND — R,E,C,O,M,M,E,N,D — all present.)
Why this question: Another "CANNOT be formed" but the killer letter is S. Builds the habit of checking S in options.
Solving path: CELEBRATION = C,E,L,E,B,R,A,T,I,O,N. Scan for S in each option: SELECTION has S — does CELEBRATION have S? No. Answer: SELECTION. (CREATE: C,R,E,A,T,E — two E's needed, CELEBRATION has two E's, passes. BRAIN: B,R,A,I,N — all present. RACE: R,A,C,E — all present.)
Why this question: This is the frequency-violation trap question. All letters in KICKER exist in KINGMAKER — but the counts are wrong. This is the hardest variant.
Solving path: KINGMAKER = K,I,N,G,M,A,K,E,R. Letter count: K appears 2 times, I-1, N-1, G-1, M-1, A-1, E-1, R-1. Check KICKER: K,I,C,K,E,R — needs C (not present in KINGMAKER, eliminated immediately). Wait — C is not in KINGMAKER at all. So this is actually also a Rule 1 violation. Even so, the explanation notes the double-K and double-C angle: KICKER has two K's and KINGMAKER has two K's so K is fine, but C is absent. Answer: KICKER.
Eyeballing instead of checking letter by letter. Candidates scan the source word and think "yeah, those letters are all there somewhere." This is how you miss a single absent letter in a 12-letter word. Always check systematically, especially under time pressure.
Ignoring letter frequency. Confirming that a letter exists in the source word is not enough. If the option uses the letter twice, the source must also have it twice. TENNIS needs two S's — but even if ENLIGHTENING had one S, TENNIS would still fail because there is no second S. Count, do not just confirm presence.
Confusing "CAN be formed" with "CANNOT be formed" mid-question. These are opposite questions and opposite strategies. Read the question stem twice before scanning options. Marking the correct answer to the wrong question costs full marks.
Checking all four options even after finding the answer. In "CANNOT be formed" questions, stop the moment you find the failing option. Checking further wastes time and occasionally leads to second-guessing.
Trusting the "sound" of a word. COURAGEOUS sounds like it could come from ENCOURAGEMENT because "courage" is in there — and COURAGE itself can be formed. But COURAGEOUS needs S which is absent. Sound-similarity is actively misleading here.
Not accounting for the "without repeating" clause. Some questions add this condition. When you see it, treat every letter in the source word as appearing exactly once, regardless of actual count. A source word with three N's gives you only one N under this rule.