了 瞭

    le

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

    liǎo

    1. Verbto finish
    2. Auxiliary verb(used with 得 dé or 不 bù after a verb to express (im)possibility)

      忘不了 Wàng bu liǎocannot forget

    3. Adverbcompletely (not); entirely (not); (not) in the least (literary) (usually followed by a negative such as 无 wú or 不 bù)
    4. Verbto understand clearly (variant of 了 le)

    liǎo

    1. Adjectivebright (of eyes); clear-sighted
    2. Verbto understand clearly

    liào

    1. unofficial variant of 瞭 liào