Essay

The slender shadows slipping in and out of sight through the tall never-moving trees instilling an ominous, eerie feel in the very core of one’s body.

Word processor says it's wrong, but I can't seem to figure out what it is!

Also one more - the word "your" is underlined for whatever reason: The fleeting moment during which YOUR racing heart beats faster and faster as if it is trying to rip itself free.