（原创文章，转载请注明来源“秀哈英语”） 时态含义
表示就过去某一时间而言，将来某一时间或时间段正在进行的动作，主要用于从句中。
例句
The government promised that a new highway would be being built next July.
政府承诺说第二年7月将有一条新的高速公路正在修建。
肯定句式would be doing
1、主语第一人称
（单数）
I would be doing....
（复数）
We would be doing....
2、主语第二人称
（单、复数）
You would be doing....
3、主语第三人称
（单数）
She would be doing....
He would be doing....
Lily would be doing....
Tom would be doing....
My mom would be doing....
Your uncle would be doing....
It would be doing....
The dog would be doing....
（复数）
They would be doing....
