怖くてどきどきしたよ。

怖くてどきどきしたよ。

I was terribly frightened.

怖(こわ)くてどきどきしたよ。

Kowakute dokidokishita yo.

怖い (こわい)

scary; frightening; eerie; dreadful; (I'm) afraid

時々 (ときどき)

sometimes; at times

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

Readings: フ、ホ、こわ.い、こわ.がる、お.じる、おそ.れる

Meanings: dreadful, be frightened, fearful