"I had a dream last night" 是表达 "我昨天晚上做了一个梦" 的常用说法。
来源：这是一个简单的句子结构，由主语（I），谓语（had）和宾语（a dream last night）组成。
英文例句：
I had a dream about you last night. (我昨晚做了关于你的梦)
I had a nightmare last night. (我昨晚做了一个噩梦)
I had a really vivid dream last night. (我昨晚做了一个特别鲜活的梦)
另外，可以用 "I dreamed" 或 "I had a dream" 代替 "I had a dream last night"。如：
I dreamed of you last night. (我昨晚做了一个关于你的梦)
I had a dream about a beautiful beach. (我昨晚做了一个关于美丽海滩的梦)