1. lay通常用作及物动词,意为“摆、放、下蛋或产卵”等,过去式、过去分词和现在分词分别为laid, laid, laying。
如:
① He laid the papers on the desk and then went out.
他把文件放在桌上,然后出去了。
② They were laying the foundation of the house.
他们在给房子打地基。
③ The cuckoo lays its eggs in other birds’ nets.
杜鹃在别的鸟巢中产卵。
2. lie一般作不及物动词用,作“躺;平放”解时,其过去式和过去分词分别为lay, lain;作“撒谎”解时,其过去式和过去分词均为lied,现在分词均为lying 。
如:
① She lay on the beach all morning.
她整个上午都躺在沙滩上。
② How long has he lain there like that?
他像那样躺在那儿有多久了?
③ He lied to me.
他对我撒了谎。
keekp doing sth,keep on doing sth,keep sb do 的区别
lie--lied--lied 撒谎 lying
Don't lie to me. I'll know if you're lying. 不要跟我撒谎,只要你撒谎我都会知道。
lie--lay--lain 躺,放置 lying
I didn't get much sleep last night. I'm going to lie down for a little. 我昨晚没怎么睡。我想躺一会儿。
lay--laid--laid 产卵,下蛋 laying
My grandma's chicken lays at least 10 eggs a day. 我祖母的鸡每天都起码下十只蛋。
laid本身是lay的过去式和过去分词,通常自身使用的话只有laid-back才会拿出来用,其他情况不常见。
laid-back 悠闲的
laid-back guy 轻松的人
laid-back attitude 轻松的态度
参考资料:百度百科-lie