Conditional sentences

• What are conditional sentences composed of?

  A main clause and an if-clause
• What do conditional sentences express?

  Conditions and their possible results
• What are the three main types of conditional sentences?

  1. Type 1 – Real Condition
  2. Type 2 – Unreal Condition
  3. Type 3 – Unreal Past Condition
• What is the structure of Type 1 conditional sentences?

  If + present simple, will-future
• When is Type 1 conditional used?

  For real and possible situations
• What can the main clause of Type 1 also use?

  Can, should, must, or imperative
• What is the structure of Type 2 conditional sentences?

  If + past simple, would + infinitive
• When is Type 2 conditional used?

  For hypothetical or unlikely situations
• What can the main clause of Type 2 also use?

  Could or might
• What is the structure of Type 3 conditional sentences?

  If + past perfect, would have + past participle
• When is Type 3 conditional used?

  For imaginary situations in the past
• What can the main clause of Type 3 also use?

  Could have or might have
• What are special cases and mixed conditionals in conditional sentences?

  • Tenses may be mixed based on context
  • Example: If I knew her better, I would have asked her
  • Example: If they left at seven, they won’t be here until twelve
  • Example: If we had gone by car, we would be there now