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