But for Definition 1 of 3Pro Tip 1/3Conditionality Expresses a condition where an event would change the outcome. I would've gone swimming but for the cold weather. Pro Tip 2/3Hypothetical Situations Ideal for discussing hypothetical outcomes or situations. But for my fear of heights, I might have tried hang-gliding. Pro Tip 3/3Time Specific Often used to explain delays or changes in timing. I would've been on time but for the long queue.