Advanced English Grammar Review

Welcome to this comprehensive course on advanced English grammar. Whether you are preparing for an exam, polishing your writing, or simply love language, this lesson will deepen your understanding of modal verbs, auxiliary structures, articles, superlatives, comparatives, and question tags. Each section explains the rule, provides clear examples, and highlights common pitfalls.

1. Modal Verbs and Negative Forms

Modal verbs express ability, permission, obligation, or advice. The most common modals are can, could, may, might, must, shall, should, will, would. When we need to prohibit an action, we use the negative form mustn't (must not). Unlike other modals, must does not take to before the base verb.

Positive: You must wear a seatbelt.
Negative: You mustn't (must not) exceed the speed limit.

In the sentence "You ___ write on the walls; the police can arrest you for it!", the correct choice is mustn't because it conveys a prohibition.

2. Using Should for Advice

The modal should is used to give recommendations or express expectation. It never takes to before the infinitive, nor does it change form for past or progressive aspects.

Correct: We should leave soon.
Incorrect: We should to leave.
Incorrect: We shoulded leave.

Thus, the sentence "We ___ leave soon." is correctly completed with should.

3. Articles: the, a, an, and Zero Article

Articles are small words that give information about the specificity of a noun. Use the for a particular, known item; a or an for any single, non‑specific item; and no article (zero article) for plural nouns, abstract concepts, or unique entities like the moon.

The moon is a unique celestial body, so we use the definite article.
A lady refers to any lady, not a specific one.
We say "I love music" without an article because music is an abstract, uncountable noun.

In the examples:

"___ moon!" → the
"___ lady in picture?" → A

4. Forming Superlatives

Superlatives compare three or more items, indicating the highest degree of a quality. For one‑syllable adjectives, add -est (e.g., fast → fastest). For adjectives ending in y, change y to i and add -est (e.g., happy → happiest). For longer adjectives, use most before the adjective.

Correct: Mount Everest is the highest mountain in the world.
Incorrect: Mount Everest is the higher mountain...

The sentence "Mount Everest is the ___ mountain in the world." therefore requires highest.

5. Question Tags

Question tags turn a statement into a short question, confirming information. The tag usually mirrors the auxiliary verb of the main clause and matches its polarity (positive statement → negative tag, and vice‑versa).

Statement: We often have dinner together.
Tag: do we? (because the main clause uses the auxiliary do)
Full: We often have dinner together, do we?

Thus, the correct tag for the sentence "We often have dinner together, ___?" is do we.

6. Comparative Forms

Comparatives compare two items. For short adjectives, add -er (e.g., fast → faster). For adjectives with two or more syllables, use more before the adjective.

Correct: Dolphins are faster than sharks.
Incorrect: more fast (should be faster)

The sentence "Dolphins are ___ than sharks." is correctly completed with faster.

7. Expressing Prohibition with Shouldn't

While mustn't denotes a strong legal or rule‑based prohibition, shouldn't suggests advice against an action. In contexts involving safety or personal responsibility, shouldn't is often appropriate.

Correct: She shouldn't ride a motorbike without a helmet.
Incorrect: She should ride a motorbike without a helmet.

Therefore, the sentence "She ___ a motorbike without a helmet." is correctly filled with shouldn't.

8. Summary of Key Points

Review the essential rules covered in this course:

Modal negatives: Use mustn't for prohibitions.
Should: Gives advice; never followed by to.
Articles: The for specific/unique nouns; a/an for non‑specific singular nouns; zero article for plurals and abstract nouns.
Superlatives: Add -est or use most for longer adjectives.
Question tags: Match the auxiliary and polarity of the main clause.
Comparatives: Use -er or more depending on adjective length.
Shouldn't vs. mustn't: Shouldn't gives advice; mustn't indicates a rule.

9. Practice Exercises

Apply what you have learned with these additional sentences. Choose the correct option and then check the explanation.

"You ___ (must / mustn't) forget to submit the assignment on time." – must (obligation).
"We ___ (should / shouldn't) bring an umbrella, it looks rainy." – should (advice).
"___ (The / A / X) stars are visible tonight." – the (specific set of stars).
"She is the ___ (smart / smarter / smartest) student in the class." – smartest (superlative).
"They live in ___ (a / an / the) United Kingdom?" – the (unique country name).
"He runs ___ (fast / faster / fastest) than his brother." – faster (comparative).
"You ___ (mustn't / shouldn't) park here; it's a no‑parking zone." – mustn't (legal prohibition).

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Advanced English Grammar Review

Which modal verb correctly completes the sentence: "You ___ write on the walls; the police can arrest you for it!"

Select the correct form of "should" in the sentence: "We ___ leave soon."

Which article is appropriate: "___ moon!" (choose the correct article or X for none).

Identify the correct superlative: "Mount Everest is the ___ mountain in the world."

Choose the correct question tag: "We often have dinner together, ___?"

Which comparative form is correct: "Dolphins are ___ than sharks."

Select the correct verb form: "She ___ a motorbike without a helmet."

Complete the sentence with the appropriate article: "___ lady in picture?"

Which past simple form fits: "We ___ to New York two summers ago."

Choose the correct negative modal: "You ___ go to work if you don’t feel well."

Select the proper question tag: "She is travelling to France, ___?"

Which comparative adjective correctly completes: "My sister is ___ than me."

Identify the correct superlative: "This series is the ___ I have ever watched."

Choose the correct modal for obligation: "Marcela ___ see a lot of patients every day."

Select the appropriate article: "___ Italian restaurant was amazing."

Which question tag is correct: "They cancelled the party, ___?"

Complete the sentence with the correct past simple verb: "I ___ a taxi to the hotel."

Which comparative adjective correctly completes: "Japan is ___ than Mexico."

Select the correct negative modal: "You ___ add much sugar to the tea."