Each of the following contains the anagram of a phrase. The digits in brackets denote the word lengths constituting the original phrase.

Identify the respective original phrases.

(I) AFFIRM DEMON (5, 2, 4). Clue: inclination.
(II) POLLUTE SPICE (4, 2,6). Clue: demolish.
(III) NICE OLD NOUN (2, 5, 4). Clue: the height of bliss.
(IV) UNMARKED SEATS (4, 2, 7). Clue: sharp.
(V) OVATE GNOME (3, 1, 4, 2). Clue: make haste.