Turn the word FAIL into the word PASS in the least amount of turns...?

Question

saw the question online somewhere and never found the answer. You have to turn the word FAIL into the word PASS where every time you change a letter you make a valid word. It said it can be done in 3 moves??? any ideas at all?

Answer 1

fail

pail

pais

pass

Definition of PAIS:  

Pa`is\, n. [OF. pu["i]s, F. pays, country.] (O. E. Law) The country; the people of the neighborhood.

Note: A trial per pais is a trial by the country, that is, by a jury; and matter in pais is matter triable by the country, or jury.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.

Answer 2

I can't see a way to do it in 3 moves, but here's a longer solution...

FAIL

PAIL

PALL

PALS

PASS