| Subject | Rules | Example |
|---|---|---|
| Past Perfect | Use had + past participle to talk about an action that happened before another past action or time. | She had left when I arrived. / They had finished the work by 5 PM. |
| Second Conditional | Use past simple in if-clause and would + base verb in main clause to talk about unreal or hypothetical situations in the present or future. | If I won the lottery, I would travel the world. / If she studied harder, she would pass the exam. |
| Modal Verbs for Deduction (must, can't, might, could) | Use must for strong positive deduction, can't for strong negative deduction, might/could for possibility. | He must be tired (he worked all day). / She can't be interested (she left early). |
| Comparative Adjectives | Use -er/more for comparatives (two items) and -est/most for superlatives (three or more items). For adjectives ending in -y, change to -ier/-iest. | This road is narrower than that one. / This is the most beautiful place I've ever seen. |
| Passive Voice (Past Continuous) | Form with was/were + being + past participle. Use for ongoing actions in the past where focus is on the action. | The road was being repaired when we drove past. |
| Reported Questions | For reported questions, use if/whether for yes/no questions, and question words (what, where, when, etc.) for wh-questions. Change pronouns and tenses. | She asked, "Where are you going?" → She asked where I was going. |
| Movement Prepositions | Use to for direction toward a place, from for direction away from a place, into/out of for entering/leaving enclosed spaces. | Go to the store, come from the office, jump into the pool, get out of the car. |
| Positive Question Tags | Use positive tags after negative statements. Use auxiliary verb from statement. | You don't like coffee, do you? / She can't swim, can she? |
| Non-Defining Relative Clauses | Use who/which (not that) for people/things, whose for possession, where for places, when for time. Always use commas. | My brother, who lives in Australia, is visiting next week. / The Eiffel Tower, which is in Paris, is famous. |
| Future Continuous | Use will be + present participle (-ing) to talk about actions that will be in progress at a specific time in the future. | This time tomorrow, I will be flying to New York. / At 8 PM tonight, they will be having dinner. |
1. had left
2. won
3. must
4. more beautiful
5. was being repaired
6. where
7. into
8. can she
9. which
10. will be flying