I want____the ciassroom.Could you please____me?

If I was you和If Iwere you在语法上、含义上有什么不同？

在当代英语中，尤其在口语中，单数主语常用was代替虚拟式were。如： If I was you, I would go。 我如是你，我就去。 I wish I was ten years younger。 我但愿年轻10岁。 I shall act by her as tenderly as if I was her own mother。 我将温存满怀地待她，就像她的生母一样。 在含义上,有时was发生的可能性大于were。 如： He looks as if he was ill。 他像是病了。 但在正式文体中仍须用were，如须说if I were in your posit...全部

  在当代英语中，尤其在口语中，单数主语常用was代替虚拟式were。如： If I was you, I would go。 我如是你，我就去。 I wish I was ten years younger。
   我但愿年轻10岁。 I shall act by her as tenderly as if I was her own mother。 我将温存满怀地待她，就像她的生母一样。 在含义上,有时was发生的可能性大于were。
  如： He looks as if he was ill。 他像是病了。 但在正式文体中仍须用were，如须说if I were in your position（假如我处于你的地位）。
  又，as it were与were it not for me中的were亦不可代以was。 参考资料:薄冰英语语法 第十一章 虚拟语气 。收起