Common More Complex Questions

English learners often encounter a bit more complex questions. This challenge will cover four subcategories of common questions, with examples provided for each type.

Questions with "Who...? / What...? / Where...? / Which...?" and prepositions at the end

Who are you waiting for?
What are you looking at?
Where do you come from?
Which book are you interested in?

"What + noun" and "Which + noun" questions

What color is your car?
What time is the meeting?
Which is bigger, an elephant or a mouse?
Which book do you prefer?

"How long" questions

How long does it take to travel from New York to Los Angeles?
How long did it take you to finish the book?
Did it take you long to get here?

"Do you know" questions

Do you know where the nearest supermarket is?
Can you tell me when the train leaves?
Could you let me know how much this costs?

Complete the quiz to practice and reinforce your learning.

To Challenges Start Challenge

Correct Answers

Complement

She is a doctor. — subject complement (describes "she" via linking verb)
We elected her chair. — object complement (describes "her" after transitive verb)
He seems tired. — subject complement (adjective after seem)
They called him a genius. — object complement (noun phrase after call)

A complement completes the meaning of a verb or expression. After linking verbs (be, seem, become) it describes the subject; after certain transitive verbs (call, elect, consider) it describes the object.

Test: remove the suspected complement. If the sentence collapses or changes meaning fundamentally, it's a complement, not a modifier.

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.

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.

Predicate

Frank = subject — likes cake = predicate
The tall man in the hat = subject — sat quietly on the bench = predicate
❌ The man on the train with the umbrella. — no predicate = fragment
✅ The man on the train read a book. — predicate added = complete sentence

The predicate = verb + everything that comes with it (objects, complements, modifiers). It's what the subject does or is. Every complete clause needs a subject + predicate.

Test: find the subject (who/what?). Everything else = predicate. If there's no verb-containing predicate, it's a fragment, not a sentence.

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.

Adjunct

John helped Bill in Central Park. → Remove in Central Park → John helped Bill. ✅ Still works.
She left yesterday. → Remove yesterday → She left. ✅ Still works.
He spoke with confidence. → Remove with confidence → He spoke. ✅ Still works.
They eat slowly. → Remove slowly → They eat. ✅ Still works.

The removable phrases are adjuncts — optional elements that add information about when, where, how, or why, but aren't required by the verb.

Test: delete the phrase. If the sentence stays grammatical, it's an adjunct.

Noun

The cat sat on the mat. — concrete nouns (things you can touch)
Happiness is important. — abstract noun (idea/quality)
London is beautiful. — proper noun (specific name, capitalised)
I need some information. — uncountable noun (no a/an, no plural)

A noun names a person, place, thing, idea, or quality. Nouns determine article choice, verb agreement, and pronoun reference. Types: common/proper, concrete/abstract, countable/uncountable.

Test: can you put the or a before it? Can you make it plural? If yes to either → it's functioning as a noun.

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).

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.

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.

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.

Complex sentence

✅ Because I overslept, I missed the bus. — dependent clause (reason) + independent
✅ The man who called is my uncle. — relative clause inside the sentence
✅ If it rains, we'll stay inside. — conditional dependent + independent
❌ Because I overslept. — fragment (dependent clause alone)

A complex sentence pairs an independent clause with one or more dependent clauses linked by subordinating conjunctions (because, although, if, when) or relative pronouns (who, which, that).

Pattern: independent clause = the main point. Dependent clause = the background, reason, or condition. Move the dependent clause around for emphasis.

English Grammar Basics

She is a teacher. — verb be + noun complement
He runs every day. — present simple, third-person -s
They don't like coffee. — negation with do-support
I have two cats. — possession, countable noun, no article before plurals

These sentences demonstrate English Grammar Basics — the foundational patterns every other topic builds on: parts of speech, basic tenses, articles, and simple sentence structure.

If you can identify the verb, the subject, and count the noun correctly, you've nailed the basics that make everything else click.

A2 | Elementary | Pre-intermediate

✅ I went to the cinema yesterday. — past simple
✅ I have visited Paris twice. — present perfect (life experience)
✅ If it rains, I'll take an umbrella. — first conditional
✅ You should see a doctor. — modal for advice

These patterns are A2 — the second CEFR level. At A2 you move past survival phrases into real grammar: past tenses, the present perfect, basic conditionals, and modals for advice/obligation.

Marker: if you can describe yesterday and give simple advice, but struggle with abstractions or nuance, you're at A2.

A1 | Elementary | Beginners

✅ My name is Anna. — present simple of be
✅ Where is the station? — basic *wh-*question
✅ I have two brothers. — possession with have
✅ She likes coffee. — third-person -s

These are A1 sentences — the starting level of the CEFR framework. At A1 you can introduce yourself, ask and answer simple personal questions, and handle basic everyday transactions using present tense, be/have/do, and core vocabulary.

If you can say these but freeze at normal speaking speed, you're solidly A1 — and that's exactly where to start.

Easy

She is a teacher. — one verb form, one rule
I have two cats. — basic possession, short sentence
He doesn't like coffee. — simple negation with do-support
Only one answer is clearly correct; distractors are obviously wrong.

Easy marks beginner-level challenges: A1–early A2, one rule at a time, everyday vocabulary, no trick questions.

Use "Easy" when you want to build confidence on a specific rule without interference from other grammar or tricky contexts.