Question Forms: Indirect, Subject, Object, and Tags

Forming questions in English can be tricky because it usually requires inverting the subject and auxiliary verb—but there are several important exceptions! For example, indirect questions return to standard affirmative word order ("Could you tell me where the museum is?"), while subject questions drop the auxiliary "do/does/did" entirely ("Who stole the pizza?").

This challenge tests your ability to navigate these nuanced interrogative rules. You will help tourists form polite indirect questions, assist a detective in distinguishing between subject and object questions ("Who stole the cheese?" vs. "Who did you see?"), and properly place prepositions at the end of informal questions. You'll also complete dramatic dialogues using tricky question tags (including the exception "aren't I?") and express disbelief using negative questions.

You'll work through 13 questions in an engaging mix of single-choice, multi-choice, drop-down, and drag-and-drop formats.

Try the quiz to check your knowledge!

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Auxiliary verb

✅ Do you know? — ❌ Know you? (English requires do-support for questions)
✅ She has finished. — ❌ She finished has. (auxiliary before main verb)
✅ They are leaving. — ❌ They leaving. (progressive needs be)
✅ He doesn't smoke. — ❌ He smokes not. (negation needs do)

Auxiliary verbs (be, have, do, and the modals) combine with main verbs to build questions, negatives, tenses, aspects, and passive voice.

Pattern: if you need to ask a question, negate, or stack tense/aspect — you need an auxiliary. The main verb carries meaning; the auxiliary carries grammar.

Clause

I missed the bus. — ✅ independent clause (stands alone)
Because I overslept. — ❌ fragment (dependent clause, can't stand alone)
Because I overslept, I missed the bus. — ✅ dependent + independent = complete sentence
I missed the bus, and I was late. — ✅ two independent clauses joined by and

A clause is a unit built around a verb with a subject. Independent = can stand alone. Dependent = needs an independent clause to complete it.

Test: does the group of words have a subject + verb AND can it be a sentence on its own? Yes → independent clause. Has a subject + verb but feels incomplete → dependent clause.

Imperative mood

✅ Sit down. — command (bare verb, no subject)
✅ Don't touch that. — negative imperative
✅ Let's go. — first-person inclusive imperative
❌ You sit down. — adding you sounds aggressive (only for emphasis/anger)

The imperative mood uses the bare verb form with no stated subject for commands, instructions, requests, and invitations. Negated with don't. Softened with please or replaced by questions (Could you…?) for politeness.

Rule: imperative = base form of verb, no subject, no tense marking. If there's a subject or tense → it's not imperative.

Indirect speech

Direct: "I am tired." → Indirect: She said she was tired. (present → past)
Direct: "I will come." → Indirect: He said he would come. (will → would)
Direct: "I have finished." → Indirect: She said she had finished. (present perfect → past perfect)
today → that day; here → there; tomorrow → the next day

Indirect speech reports someone's words without quotation marks. The mechanism: backshift tenses one step into the past, shift pronouns, and adjust time/place expressions.

Rule: if the reporting verb is past (said, told, asked), shift the reported tense back one step. If the reporting verb is present (says), no shift needed.

Inversion

✅ Has Sam read it? — question inversion (basic)
✅ Rarely have I seen such talent. — fronted negative (advanced)
✅ Not only does she sing, she also writes. — correlative inversion
✅ Had I known, I would have acted. — inverted conditional (no if)

Inversion = subject and auxiliary swap places. Basic: all English questions. Advanced: fronted negatives/restrictives (Rarely…, Not only…, Never…) and formal conditionals without if.

Pattern: put a negative/restrictive adverb at the front → invert subject and auxiliary. This is a C1+ rhetorical device for emphasis.

Modal verb

✅ She can swim. — ❌ She can to swim. (modal + bare infinitive, no to)
✅ You must leave now. — strong obligation
✅ It might rain. — possibility (~50%)
✅ He should apologise. — advice/recommendation

Modal verbs (can, could, may, might, must, shall, should, will, would) are auxiliaries expressing ability, permission, possibility, obligation, or speculation. Always + bare infinitive. Never inflected (she can, not she cans).

Rule: modals never take to after them, never add -s for third person, and can't combine directly (must can ❌ — use must be able to).

Negation

✅ I don't see anything. — ❌ I don't see nothing. (double negative in standard English)
✅ She never goes out. — never already negates (no doesn't needed)
✅ He doesn't like coffee. — do-support for negation
✅ Nobody came. — negative subject (no auxiliary needed)

Negation uses not after an auxiliary/modal, or do-support when there's no auxiliary. One negative per clause in standard English — never, nobody, nothing already negate without adding not.

Rule: one negative element per clause. I don't see anything or I see nothing — never both together in standard English.

Object

Sam fed the dogs. — direct object (what was fed)
She sent him a present. — indirect object (who received it)
She waited for Lucy. — prepositional object (after preposition)
I gave her a book. — indirect + direct object together

An object is what a verb acts on or directs its action toward. Direct = the thing affected. Indirect = the recipient. Prepositional = after a preposition.

Test: Verb + what/whom? = direct object. Verb + to/for whom? = indirect object. After a preposition? = prepositional object.

Past tense

I walked home. — simple past (completed action)
I was walking when it rained. — past progressive (in progress)
I had already left when she arrived. — past perfect (earlier past)
I had been waiting for an hour. — past perfect progressive (duration up to a past point)

Four past tense forms: simple past (done), past progressive (was happening), past perfect (had already happened), past perfect progressive (had been happening). Each encodes different timing relative to other past events.

Pattern: simple past = the story's main timeline. Past progressive = background action. Past perfect = flashback to something even earlier.

Preposition

✅ interested in — ❌ interested on
✅ good at football — ❌ good in football
✅ depend on — ❌ depend of
✅ arrive at the station — ❌ arrive to the station

Prepositions link nouns to the rest of the sentence: time (at 5pm), place (in London), manner (with care), abstract (afraid of). Most are idiomatic — the "correct" preposition must be memorised with each verb/adjective combination.

Rule: there is no universal rule. English prepositions are learned by combination: interested IN, good AT, depend ON, afraid OF. Your native language's equivalent will often mislead.

Pronoun

✅ between you and me — ❌ between you and I (objective case after preposition)
✅ its colour — ❌ it's colour (it's = it is)
✅ She did it herself. — reflexive pronoun
✅ The person who called… — relative pronoun

Pronouns replace nouns: personal (I/me/my), demonstrative (this/that), relative (who/which/that), interrogative (who?/what?), reflexive (myself), indefinite (everyone/nobody). They carry case that nouns have lost.

Trap: pronouns are where English case still matters: I vs me, who vs whom, its vs it's. Get these wrong and it's instantly noticeable.

Questions

✅ Do you like coffee? — do-support (no existing auxiliary)
✅ Can she swim? — inversion (auxiliary before subject)
✅ Where does he live? — wh-question
✅ You're coming, aren't you? — tag question

Questions require inversion (auxiliary before subject) or do-support (add do/does/did). Types: yes/no (Do you…?), wh- (What/Where/When…?), negative (Don't you…?), tag (…isn't it?).

Rule: find the auxiliary. Move it before the subject. No auxiliary? Add do/does/did. Never use just intonation in written English (You like coffee? is not standard).

Subject

✅ The list of items is wrong. — subject = list (singular), not items
❌ The list of items are wrong. — trapped by nearest noun
✅ Running is good exercise. — gerund as subject
✅ What he said surprised me. — clause as subject

The subject is the noun/pronoun/phrase before the verb that controls its number and person. Finding the true subject — especially through prepositional phrases — is the key to subject-verb agreement.

Rule: strip away prepositional phrases between subject and verb. Whatever's left is the true subject. The list (of items) is wrong.

Verb

walk → walk / walks / walked / walked / walking (5 forms, regular)
go → go / goes / went / gone / going (5 forms, irregular)
be → am/is/are/was/were/be/being/been (8 forms)
can → can / could (modal: only 2 forms, no -s, no -ing)

A verb is the one word class every English sentence requires. Carries tense (when), aspect (duration), mood (attitude), and voice (active/passive). Regular verbs add -ed; ~200 irregular verbs have unpredictable past forms.

Key insight: fix your verbs and most grammar problems disappear. Wrong tense, wrong agreement, wrong form — verb errors account for the majority of grammatical mistakes.

Simple tense

✅ I go to work every day. — present simple (habit)
✅ She went home yesterday. — past simple (completed action)
✅ I will call you later. — future simple (promise/decision)
✅ Water boils at 100°C. — present simple (general truth)

The simple aspect is the default, unmarked verb form. Present simple = habits, facts, schedules. Past simple = completed actions. Future simple = predictions, promises, decisions. No auxiliary needed (except will for future and do for questions/negatives).

Rule: if the action is a fact, habit, completed event, or scheduled future — and you don't need to emphasise it being in-progress or connected to now → simple tense.

Word order

✅ She (S) eats (V) cake (O). — standard SVO
❌ Cake eats she. — SOV (not English)
✅ a lovely little old rectangular green French silver whittling knife — adjective order (opinion→size→age→shape→colour→origin→material→purpose)
✅ Never have I seen… — inversion after negative adverb

English word order = SVO (subject-verb-object) as default. Adjectives follow a fixed sequence (opinion→size→age→shape→colour→origin→material). Adverb placement varies by type. Deviations signal questions, emphasis, or literary style.

Rule: when in doubt, default to SVO. English position = meaning. Move a word and you change the grammar or the emphasis.

B1 | Intermediate

✅ If I had more time, I would travel more. — second conditional
✅ The bridge was built in 1920. — passive voice
✅ She said she was tired. — reported speech with backshift
✅ Although it rained, we enjoyed the trip. — complex sentence with concession

These are B1 patterns — the CEFR intermediate level. At B1 you link ideas, use passive voice, handle reported speech, and manage second conditional — enough for travel, work basics, and everyday independence.

Marker: if you can explain why something happened and follow a news story, you're B1.

B2 | Upper Intermediate

✅ If I had studied harder, I would have passed. — third conditional
✅ The report is being reviewed by the committee. — passive progressive
✅ Having finished the exam, she left. — participle clause
✅ He denied having taken the money. — complex verb pattern

These are B2 patterns — the CEFR upper-intermediate level. At B2 you handle mixed conditionals, all passive forms, participle clauses, and can argue a point clearly. This is the level most universities and employers require.

Marker: if you can write a structured essay and debate an abstract topic, you're B2.

Medium

If I were you, I would apologise. — one rule (second conditional), but distractors like was tempt you
Answers require active thought, not instant pattern recognition
Vocabulary and context are realistic, not artificially simplified
Usually tests one rule, but the wrong answers are plausible

Medium marks middle-difficulty challenges: A2–B1, one rule tested, but with realistic distractors that require genuine understanding.

Use "Medium" when Easy feels too obvious but Hard feels overwhelming. This is where most productive learning happens — the sweet spot of difficulty.