もし嘘なら、彼女はうそつきだ。

もし嘘なら、彼女はうそつきだ。

If that's false, she's a liar.

もし嘘(うそ)なら、彼女(かのじょ)はうそつきだ。

Moshi uso nara, kanojo wa usotsuki da.

若し (もし)

if; in case; supposing

嘘 (うそ)

lie; falsehood; incorrect fact; Really!; Unbelievable!; No way!

だ (だ)

be; is; indicates past or completed action; indicates light imperative

彼女 (かのじょ)

she; her; her; girlfriend; sweetheart

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

嘘つき (うそつき)

liar (sometimes said with not much seriousness); fibber

Readings: キョ、コ、うそ、ふ.く

Meanings: lie, falsehood

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: ジョ、ニョ、ニョウ、おんな、め

Meanings: woman, female