The past tense of scare the living daylights out of is scared the living daylights out of.
The third-person singular simple present indicative form of scare the living daylights out of is scares the living daylights out of.
The present participle of scare the living daylights out of is scaring the living daylights out of.
The past participle of scare the living daylights out of is scared the living daylights out of.