Answer:
END RHYME: Because I could not stop for death -
He kindly stopped for me -
The carriage held but just ourselves-
And immortality.
SLANT RHYME: Or rather- he passed us -
The Dews drew quivering and chill-
For only gossamer, my gown-
My tippet- Only tulle-
INTERNAL RHYME: The Dews drew quivering and chill