Bunpo-check keeps saying that the に in here is incorrect 先日に歩た時の、校長さんを見た If
it's so, please explain me why. Thanks
CC BY-SA 4.0
2023-01-13T17:58:39.773
98135
2023-01-13T17:58:39.773
55449
question
particles particle-に
Is using に with 先日 incorrect?