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Unit 10
Comprehensive C1 Review
all-skills practice section
The Final Unit
Congratulations on reaching the end of the grammar journey! This unit consolidates the core structures of the entire course — from tenses and modals to inversion, clefts, and cohesion. It is designed to help you identify weak points and build confidence for C1-level exams (CAE, IELTS, TOEFL, PTE).
Key Grammar Areas at a Glance
| Area | Key use | Example |
|---|---|---|
| Tenses | time & aspect | He has been working here for years. |
| Modals | ability, possibility, advice | You should try again. |
| Conditionals | real / unreal situations | If I had known, I'd have helped. |
| Passive | focus on the action | The report was written yesterday. |
| Reported speech | indirect communication | He said he was tired. |
| Relative clauses | add detail concisely | The person who called was my boss. |
| Gerunds/infinitives | verbs as nouns | I enjoy reading; I decided to leave. |
| Inversion | emphasis | Never have I seen such talent. |
| Ellipsis/substitution | avoid repetition | I think so. / the red one. |
High-Value C1 Structures to Master
- Mixed conditionals: If I had saved, I'd be rich now.
- Inversion: Not only did he win, but he also broke the record.
- Cleft sentences: What I need is rest. / It was you who helped.
- Advanced passives: He is believed to have left.
- Subjunctive: It is essential that he be present.
- Reduced clauses: The books written by her sold out.
Common Error Hotspots (Review)
| Error | Correct | Rule |
|---|---|---|
| She suggested to go. | She suggested going. | suggest + -ing |
| I didn't know where does he live. | I didn't know where he lived. | no inversion in reported speech |
| If I will see him, I'll tell you. | If I see him, I'll tell you. | no "will" in the if-clause |
| He said me that he was tired. | He told me that he was tired. | say has no object |
| It's important you to come. | It's important that you come / for you to come. | correct complement structure |
Exam Strategy Tips
- Read the whole sentence before choosing — context decides tense and form.
- Spot the trigger word: "unless", "suggest", "by", "never at the start" all signal a specific structure.
- Check agreement (subject-verb) and form (participle vs base) after you choose.
- Use variety in writing/speaking — examiners reward a range of structures used accurately.
- When unsure, prefer the option that is grammatically safe and natural over the "clever" one.
Annotated Examples
Subject
Verb
Auxiliary
Object
Adjective
Adverb
Preposition
Hover over any word to see its role.
Had I knownabout the meeting,subjectIverbwould have attended.
↳ Inverted third conditional — formal, no "if".
subjectWhat surprised meverbwasobjecthis honesty.
↳ Wh-cleft — focus on "his honesty".
subjectHeverbis saidverbto have travelledadverbwidely.
↳ Advanced reporting passive — to have + past participle.
Common Mistakes
If I would know, I would tell you.
→
If I knew, I would tell you.
No "would" in the if-clause (second conditional).
Never I have been so embarrassed.
→
Never have I been so embarrassed.
Negative fronting requires inversion.
Had I have known, I would have come.
→
Had I known, I would have come.
Inverted third conditional: Had + subject + past participle.
The meeting was held by yesterday.
→
The meeting was held yesterday.
No "by" before a time expression.
It is essential that he is present.
→
It is essential that he be present.
Subjunctive after "essential that": base form.
Despite he was ill, he came.
→
Despite being ill / Although he was ill, he came.
despite + noun / -ing.