Science and Future Tech

Review the grammar practice and do the writing exercises to help improve your writing skills.

Science and Future Tech

Past Modals of Deduction

  • Must have – certain
  • May/might/could have – possible
  • can’t couldn’t have – certain something didn’t happen

Mixed Conditionals

Type 3/2

  • A past condition with a present result
  • If + past perfect, main – modal verb + infinitive

Type 2/3

  • A present condition affected a past action
  • If + past simple, main – modal verb + have + past participle

Writing a For and Against Essay

  • Include an introduction (what is the topic)
  • Give different reasons for each side – the pros and cons
  • Conclusion to wrap up the main argument

Examples

He could have been stuck in traffic.
If I had listened to you, I wouldn't be in this career.
If I were a good cook, I would have made dinner for everyone.

Practise

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