The term 'YOU SHOULDN'T HAVE' can be represented by three different crossword solutions: TSK (3 letters), TSKTSK (6 letters), and AWGEE (5 letters). TSK is an interjection used to express disapproval or disappointment, while TSKTSK is an expression of disapproval or regret. AWGEE is an informal expression of sympathy or regret. All three of these expressions are used to indicate that someone has done something wrong or made a mistake.