The FL finds out the boy who saved her in the past is the ML 

Main characters yelling out loud on a cliff, building, or public place to cheer themselves up or confess their feelings for one another.

One of the main leads chasing somebody who apparently doesn't hear them to tell them something for like 5 whole minutes and ends up losing them anyway. 

poor girl and rich guy

                      or

Poor guy and rich girl

Reporters trying to destroy the main characters

They are NEVER the good guys.

Secondary character- Give him/ her back to me

Main character- shocked/ confused look on their face

How can you ask another person for someone that has no interest in you? lol

cafe scenes. or Subway :P

When the main lead goes to confess to confess his/her feelings , something major happens and hence they are unable to.

when people want to disguise themselves they dress all black with a cap and face mask. doesn't that just make them look more suspicious? xD

An antagonistic character (parents/ex/etc.) who objects to the leads being together for one reason or another.

●The crazy Mother-in-law or Crazy Ajunmma

●The scene of the depressed main character walking and suddenly it starts to rain.

●The obligatory hospital scene

●The main characters constantly breaking up and getting together ALL THE TIME!

Screaming

Yelling

Fish kisses

Crazy exes,or childhood friends who fall for the main leads

Leads breaking up for no reason,then getting back together the last episode