Preteritive
a. 过去时的; (动词)只有过去时(或式)的
🗣️ 情景例句
How can you do business with the americans? You'll need to improve your English first.
你怎么能与美国人做生意？你得先提高自己的英文水平。
To step on
踩到
Did you know he was having an affair?
你知道他有外遇了吗？