Note on Conditional

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Sentences containing conditional clauses like if, unless, provided that are called conditional sentences. They express four types of conditions and each type has different structures and meanings.

Types Meanings Structures Examples
Zero always real and possible simple present, simple present If it rains, we need an umbrella.
First possible situations in the present or future.

simple present, will/shall/can/may+v1

simple present, imperatives

If she meets me, I will help her.

If you want to achieve success, work hard.

Second unlikely but possible situation in the present or future simple past, would/could/might+V1 If i were a bird,I could fly high.
Third unreal situations in the past past perfect, would/could/might+ have+V3 If they had invited me, I could have come.

Various Structures of Conditional sentences

Positive Conditions:

  • I will do it if you help me.If you like
  • If you like it , you may buy it.

Negative conditions:

  • If you don't work hard, you will fail the exam.
  • If you don't water flowers, they die.

Interrogative conditions:

  • What happens to your laptop if you left it in sleeping mode for whole day?
  • What will you do if he rejects your idea?

Had+ subject+ past participle:

  • Had he come in time, he would have caught the bus.
  • Had I saved my money, I would have bought a dress.

  • Sentences containing conditional clauses like if, unless, provided that are called conditional sentences.
  • They express four types of conditions and each type has different structures and meanings.

 

 

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Sharad

Why shouldn't we use was with singular subjects in the conditional sentence?


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