The crossword solutions for the term 'constantly find fault with' are 'NAG' (3 letters) and 'nagat' (5 letters). Nagging is a form of criticism that involves persistent and often petty complaints. It is usually done in a way that is annoying and irritating to the person being nagged. Nagat is a more extreme form of nagging, where the person is constantly finding fault with the other person and making them feel bad about themselves.