lay现在分词形式怎么写

lay的现在分词：laying

v.(尤指轻轻地或小心地)放置，安放，搁;铺，铺放，铺设(尤指在地板上);(在某物上)摊开，涂，敷;用一层…覆盖

例句：

He was laying the flattery on with a trowel.

他吹捧得天花乱坠。

traditional parents, who believed in laying down the law for their children.

信奉需要对子女严立规矩的老派父母

The aphid is now laying waste to the wheat and barley fields.

蚜虫正在毁掉一片片的小麦和大麦田地。