误He promised to take me boating on a calmed day.
正He promised to take me boating on a calm day.
她给那个镇定的男孩一点牛奶。误She gave the calm boy some milk.
正She gave the calmed boy some milk.
析calm修饰天气、海洋、水等时作“平静的”“无风的”解,可直接用于名词前作定语; calm的过去分词calmed用作定语时主要修饰“人”,表示“镇定的”“镇静的”。