骑自行车的过去式是：rode。来源是从动词“ride”的过去式形式。

例句：

I rode my bike to the park yesterday.
昨天我骑自行车去公园。
She rode her bike to work every day last week.
上周她每天都骑自行车去上班。
They rode their bikes along the coast last summer.
去年夏天他们骑自行车沿着海岸路走。