A) can B) could C) may
A) must B) can C) might
A) can't B) must C) might
A) must'nt B) could C) should
A) must'nt B) shall C) ought to
A) might B) must C) can't
A) should B) may C) might
A) may B) can C) can't
A) may B) can C) must
A) mustn't B) can't C) might |