What’s up with “lay” and “lie”?

theyuniversity:

Few topics in grammar and usage inspires as much dread and confusion as lay vs. lie. This post will allay your fears.

Need even more examples? Here you go:

• When I get home, I’m going to lie in the hammock and relax.
• In which room should I lay the new rug?
• Yesterday, my dog lay on my lap and took a long nap.
• Jim has lain on the sofa since noon.
• Every night, Finn lies on his bed and sleeps inside his sleeping bag.