have加ed是什么时态

have加ed是现在完成时。

例句：

Prices have risen alarmingly.

价格涨得吓人。

Building costs have nosedived.

建筑费用猛跌下来。

扩展资料

Prices have fallen dramatically.

价格突然暴跌。

They have failed lamentably.

他们的`失败让人惋惜。

Attitudes have changed radically.

态度发生了根本的变化。