Английский язык. Ч.3 (Units 9,10). Ильичева Н.А - 55 стр.

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They are used to express real or very probable situations in the present or
future.
If I hear the news, I’ll tell you immediately.
Type 2 Conditionals (unreal present)
If-clause Main clause
If + past simple or past
continuous.
would/could/might + present bare
infinitive
They are used to express imaginary situations which are contrary to facts in
the present and, therefore, are unlikely to happen in the present or future.
If the Sun became a black hole, it would have a radius of 3 kilometers.
Type 3 Conditionals
If-clause Main clause
If + past perfect or past perfect
continuous.
would/could/might + perfect bare
infinitive
They are used to express imaginary situations which are contrary to facts in
the past. They are also used to express regrets or criticism.
If she hadn’t been doing her research on radioactivity, she wouldn’t have
got leukemia.
Notes
1. Unless means if not.
I’ll go for a walk unless it rains.
I’ll go for a walk if it doesn’t rain.
2. After if we can use were instead of was in all persons.
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      They are used to express real or very probable situations in the present or
future.
      If I hear the news, I’ll tell you immediately.


                           Type 2 Conditionals (unreal present)
       If-clause                                  Main clause
 If     +    past    simple     or   past would/could/might        +   present   bare
 continuous.                                   infinitive


      They are used to express imaginary situations which are contrary to facts in
the present and, therefore, are unlikely to happen in the present or future.
      If the Sun became a black hole, it would have a radius of 3 kilometers.


                                     Type 3 Conditionals
       If-clause                                     Main clause
If + past perfect or past perfect would/could/might                +   perfect   bare
continuous.                                 infinitive


       They are used to express imaginary situations which are contrary to facts in
the past. They are also used to express regrets or criticism.
       If she hadn’t been doing her research on radioactivity, she wouldn’t have
got leukemia.


       Notes


1. Unless means if not.
      I’ll go for a walk unless it rains.
      I’ll go for a walk if it doesn’t rain.
2. After if we can use were instead of was in all persons.
                                                55

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