The correct answers are: In this realm, the wealthy live in floating castles while the poor dwell in the caves below. The elderly are highly respected for their knowledge of ancient spells.
We can use "the" + an adjective to talk about a specific group of people in society (e.g., the wealthy, the poor, the elderly, the brave).
When used this way, the expression is always plural, but we never add an "-s" to the adjective. Therefore, "the braves" and "the poors" are grammatically incorrect.
Article
- ✅ an hour — ❌ a hour (vowel sound → an)
- ✅ a university — ❌ an university (consonant sound /j/ → a)
- ✅ I love coffee — ❌ I love the coffee (generic uncountable → zero article)
- ✅ the sun — ❌ a sun (unique referent → the)
Articles (a/an, the, and the zero article) signal whether a noun is specific or general. A/an introduces something new; the points to something already known or unique.
Pattern: a/an = "one of many, first mention." The = "you know which one." Zero article = generic or uncountable.
Adjective
- ✅ a tall building — ❌ a tally building
- ✅ The soup is hot — ❌ The soup is hotly
- ✅ a lovely small old table — ❌ a small lovely old table
- ✅ She seems tired — ❌ She seems tiredly
These bolded words are adjectives — words that describe nouns or pronouns. They sit before a noun (a tall building) or after a linking verb (The soup is hot).
Pattern: if a word can slot between a/the and a noun (a ___ thing) and can take -er/-est, it's almost certainly an adjective.
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.
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.
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.