Fall in line
Fall off the map
Up a tree
Fall by the wayside
Bark up the wrong tree
Fall on deaf ears
Shake like a leaf
Falling head over heals in love
Leaf through (something)
Fall through the cracks
Fall to pieces
Fall short of
Fall into your lap
Turn over a new leaf
Fail to finish an activity; to stop trying
The person you are talking to doesn't listen to your request
Behave in a manner that is similar to others
In a difficult situation
To not be noticed or dealt with
To follow the wrong course or make a wrong choice
To start behaving in a better way
To not reach a particular level or standard
To gain something without making any effort
Shakes a lot with nerves or fright
To become emotionally upset
To stop being known or considered; disappear
Fall deeply and suddenly in love with someone
to quickly look through papers or books
