Lines by a Medium

I might not, if I could;
      I should not, if I might;
  Yet if I should I would,
      And, shoulding, I should quite!

I must not, yet I may;
      I can, and still I must;
  But ah! I cannot—nay,
      To must I may not, just!

I shall, although I will,
      But be it understood,
  If I may, can, shall—still
      I might, could, would, or should!

Anonymous.