can't understand it

Grammar usage guide and real-world examples

The phrase "can't understand it" is an extremely common and versatile expression in the English language. Based on Ludwig data, it appears most frequently in high-quality journalism and media to convey a person's struggle with complex logic, shocking behavior or difficult languages. While grammatically standard, the contraction 'can't' lends it a natural, conversational feel that is suitable for most contexts except the most rigid academic papers. Whether used to describe a tax system, a sports referee's decision or a personal relationship, it remains a powerful tool for signaling a complete breakdown in the process of comprehension. For writers seeking more variety, alternatives like "cannot comprehend it" or "can't make sense of it" can provide subtle shifts in tone and intensity.