彼女はとても疲れていたので歩けなかった。

She was so tired that she couldn't walk.

彼女(かのじょ)はとても疲(つか)れていたので歩(ある)けなかった。

Kanojo wa totemo tsukareteita node arukenakatta.

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

迚も (とても、とっても)

very; awfully; exceedingly; (not) at all; by no means; simply (cannot)

疲れる (つかれる)

to get tired; to tire; to be worn out (e.g. of well used objects); to starve

ので (ので、んで)

that being the case; because of ...; the reason is ....; given that...

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

Readings: ヒ、つか.れる、 -づか.れ、つか.らす

Meanings: exhausted, tire, weary

Readings: ホ、ブ、フ、ある.く、あゆ.む

Meanings: walk, counter for steps