第一组：
lie/lay/lie
1)lie不及物动词，躺；位于
lie—lay—lain—lying
例句：①Shanghai lies to the south of Beijing.
(上海位于北京的南方。)
②She has lain in bed for three days.
(她已经在床上躺了三天了。)
2)lay及物动词，放置；下蛋
lay—laid—laid—laying
例句：①These hens lay eggs every day.
(这些鸡每天下蛋。)
②He laid his hand on my shoulder.
(他把手放在我的肩上。)
③lie不及物动词，说谎
lie—lied—lied—lying
例句：①Don’t lie to me.
(别骗我。