When it comes to wether it is better to know the modern or the elder English, I could tell you that today`s transformations are so related to the every day jargon that this modifications in the language ruin, in a metaphoric way, the correct use of the English.
A good example is the Direct and Indirect Speech. It has been always known that the Past Simple passes as Past Perfect in Indirect Speech. However, today it is accepted to pass the Past Simple into the Past Simple.
Another example is the Second Conditional. Nowadays, it is possible to say "If I was you" instead of "If I were you".
By a constant student, as we are learning new things all the time.
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