 Re: If he is such a good doctor,he should have diagnosed my illness
It is a correct sentence, though unusual in mixing the first and third conditionals. This is normally only done with 'should', though I have seen it done with 'would'. If I say, 'if he were', then I don't believe he is a good doctor, while if I say 'if he is', then I am still unsure about it- I tend towards thinking he's not a good doctor, but am prepared to be wrong. |