"go to the park" 的过去式是 "went to the park"。
这个词组来源于英语中的动词 "go" 的过去式 "went" 与 "to the park" 的短语组合。其中 "go" 的过去式是通过添加 -ed 来形成的。
例句：
Yesterday, I went to the park with my friends. (昨天，我和我的朋友们去了公园。)
The kids went to the park after school. (孩子们放学后去了公园。)
Last weekend, we went to the park to play soccer. (上周末，我们去公园踢足球。)