He has lain down with us.
I like to lie on the floor.
So to lie is what we call an intransitive verb as in to lie down whi.
Yesterday i lay down next to her.
Unfold the blanket and lay it on the floor.
You d better lie down.
I am lying next to her.
Because you need a direct object only with lay you will know that the past tense is laid.
As for the misconceptions well when you look at the two verbs next to each other in different tenses it becomes a bit more obvious where the confusion is.
Don t lie on the floor.
The past tense of lie as in to tell an untruth is lied as you can see the past tense of lie is lay but the past tense of lay is laid which is a recipe for confusion to remember that laid as opposed to lain is the past tense of lay just memorize this phrase.
The past tense of lie is lay and the past participle is lain.
I just want to lie in bed all day.
Lie down next to me.
In other words lay takes a direct object and lie does not.
Lie is an intransitive verb which means it cannot have a direct object.
No they re not interchangeable as someone else was asking.
This stuff is pretty groundbreaking.