英语吃过晩餐了怎么说

如果你想表示已经吃过晚餐，你可以说:

"I have already eaten dinner."

"I have had dinner."

"I ate dinner already."

你也可以用过去完成时态来表示过去已经吃过晚餐，例如:

"I had eaten dinner before you arrived."

"I had finished eating dinner by the time the movie started."