Compared with the general form in crime committing (namely, consummated crime), preparation for a crime, attempted crime and discontinuation of a crime are special forms in crime committing.

Preparation, attempt or discontinuance of crime is a kind of inchoate conformation, so they can be called inchoate crime.

As an intentional crime, Implicated Offense also has some suspending forms, like Accomplished crime, Preparation for crime, Criminal Attempt, and Discontinuation of crime.