would you show me usages of the verb should in conditional type 2 and third –

My profs. has told me the fact that we could use the verb should as to conditional sentences" second and third", that is, probable and impossible sentences:

So, would you show me these, using the verb should?

Answer

It's grammatically correct to use "should" instead of "would" for the pronouns I/we in conditional type 2 and type 3 sentences, but the use of "would" is more common and that of "should" is seldom. A few examples are given below:

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  If I worked harder, I would/should pass the exam. (type 2)

  
  


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  If I had worked harder, I would/should have passed the exam. (type 3)

  
  
  


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  if we had lots of money, we would/should travel round the world. (Type 2)

  
  


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  If we had had lots of money, we would/should have travelled round the world (type 3)