Final answer:
Frank could be charged with attempted assault, attempted murder, or assault with a deadly weapon, depending on the intent behind his action of trying to stab Jack.
Step-by-step explanation:
Frank's action of attempting to stab Jack constitutes a criminal offense that would typically be labeled as attempted assault. However, in some jurisdictions, if the intent to cause serious bodily harm or the intent to kill can be established, Frank might be charged with attempted murder or assault with a deadly weapon. These are serious charges resulting from Frank's attempt to use physical force against Jack, specifically involving a weapon. Even though Frank missed Jack, the law still recognizes his action as an attempt to commit a crime.