妈妈过来了用英语可以说成 "Mom is coming" 或 "My mother is coming."

这个句子的来源是英语语法中的主语+谓语+宾语的句子结构。"Mom" 或 "My mother" 是主语，"is coming" 是谓语，表示动作。

下面是一些例句：

My mother is coming to visit me next week. (我妈妈下周来看我)
Mom is coming to pick me up from school. (妈妈来接我放学)
I heard my mother's car pull up, so I know she's coming. (我听到我妈妈的车开进来了，所以我知道她来了)

希望这些例句能帮助你理解 "Mom is coming" 的用法。