“Seem” 是一个动词，其过去式是 seemed。
语法解释：
- seem 的原形是 seem。
- seem 的过去式是 seemed。
- seem 的过去分词是 seemed。
例句：
-
She seemed happy.（她看起来很开心。）
→ 过去式：She seemed happy. -
He seemed to be very tired.（他看起来非常累了。）
→ 过去式：He seemed to be very tired.
总结：
| 时态 | 动词形式 |
|---|---|
| 现在式 | seem |
| 过去式 | seemed |
| 过去分词 | seemed |
如果你有其他动词的过去式问题，也可以告诉我！