Why do we use were in second conditional?

E.g. “I would change my position if I were you.” In the second conditional, the verb form “were” is used for all persons, e.g., I, we, you, he, she, it, they, because it treats of things which are unreal (not true or not possible) in the present or in the future, i.e., things which don’t, won’t, or cannot happen.Click to see full answer. Besides, can we use was in second conditional?In the second conditional, when the verb in the if-clause is a form of be, we use were instead of was. Note that this use of were is possible and recommended with all subjects. Was is also becoming acceptable, but many grammarians still insist that you should use were.Secondly, how do you use second conditional? We use a past verb though are imagining the present or the future to be different. The second clause of subject + would + verb (conditional verb) is conditional to the first clause happening (or will only happen if the first part/clause happens). Example: If I won the lottery, I would travel around the world. Beside above, why do we use second conditional? Second conditional is used in situations/actions in the present or future which are not likely to happen or are imaginary, hypothetical or impossible. If I won the lottery, I would travel around the world and buy a castle.When speakers use a second conditional sentence they are referring to?Conditional sentences in English are used to talk about events and their results. The second (2nd) conditional is the present hypothetical conditional. Hypothetical means imaginary or not real. Use the second conditional when you want to imagine that the present, right now, is different than it really is.