了

le

1. (completed action marker)
2. (modal particle indicating change of state, situation now)
3. (modal particle intensifying preceding clause)

liǎo

1. to finish
2. (used with 得[de2] or 不[bu4] after a verb to express (im)possibility, as in 忘不了[wang4 bu5 liao3] "cannot forget")
3. (literary) (usually followed by a negative such as 無|无[wu2] or 不[bu4]) completely (not); entirely (not); (not) in the least
4. variant of 瞭|了[liao3]
5. (bound form) clear in one's mind; to understand clearly

liào 瞭

1. unofficial variant of 瞭[liao4]