Lay vs. Lie: The Complete Guide (With a Conjugation Chart)

Lay means “to put or place something,” so it always needs an object: you lay a book on the table. Lie means “to recline or rest,” and it never takes an object: you lie on the couch. If you can ask “lay what?” and get an answer, use lay. If nothing is being placed, use lie.

• Please lay the blanket on the bed. (The blanket is being placed.)
• I’m going to lie down for an hour. (Nobody is placing anything.)

The confusing part is the past tense: the past of lie is lay. That overlap is why “I laid down yesterday” and “I lay down yesterday” both sound plausible. Below you’ll find the full conjugation chart, the trap explained step by step, and practice sentences to lock it in.

Transitive vs. Intransitive: The Key Difference

Grammarians describe the difference with two terms:

• A transitive verb carries its action over to an object. Lay is transitive: She lays the keys on the counter.
• An intransitive verb doesn’t take an object. Lie is intransitive: The keys lie on the counter.

Notice that lie isn’t only for people. Objects and places can lie too: The town lies at the foot of the mountains. The answer lies in the data.

Quick rule: Lay = place (it needs a thing). Lie = recline (it stands alone).

The Full Conjugation Chart

Here are all the forms side by side. There’s also a third verb, lie meaning “to tell an untruth,” which is regular and easy.

Examples for each form:

Lie (recline)

• Today I lie in the sun.
• Yesterday I lay in the sun.
• I have lain in the sun all afternoon.
• I am lying in the sun.

Lay (place)

• Today I lay the towels out.
• Yesterday I laid the towels out.
• I have laid the towels out.
• I am laying the towels out.

Lie (tell an untruth)

• He lies about his age.
• He lied to the officer.
• He has lied before.
• She knew he was lying.

The Past-Tense Trap: “I Lay Down Yesterday”

This is where nearly everyone gets tangled. Because the past tense of lie is lay, these two sentences are both correct, and they mean different things:

• Today I lay the book on the desk. (present tense of lay: placing the book)
• Yesterday I lay on the couch. (past tense of lie: reclining)

So when you want to say you rested at some point in the past, the correct form is lay, not laid:

In casual American speech, you’ll hear “lay down” for “lie down” all the time. Merriam-Webster notes that intransitive lay is common in speech but is generally considered nonstandard in edited writing. In anything formal or published, stick with the traditional forms.

A quick check for the past tense

Ask two questions:

1. Is something being placed? If yes, use lay / laid / laid.
2. If not, when did it happen? Now = lie. Past = lay. With has/have/had = lain.

Idioms: Lie Low, Lay Low, and Friends

Some fixed expressions follow the rule; a few have drifted.

Lie low vs. lay low

To lie low means to stay hidden or out of sight for a while. Because no object is involved, lie low is the traditional form, and it’s the safer choice in formal writing: After the scandal, the senator decided to lie low.

That said, lay low is very common in American speech and informal writing, and dictionaries record it as a widely used variant. You’ll see both. If you want the version no editor will question, use lie low (past tense: lay low, which, conveniently, matches the variant).

Other expressions

• Lay off (to dismiss workers): The company laid off 50 employees. (Transitive: employees are the object.)
• Lay out (to arrange or explain): She laid out the plan.
• Lie in wait: The cat lay in wait behind the sofa.
• Let sleeping dogs lie: leave a situation alone. (Not “let sleeping dogs lay.”)
• Lay of the land: the general situation. Americans say lay of the land; British speakers often say lie of the land. For more differences like this, see our American vs. British English guide.
• Lay an egg: hens lay eggs (the egg is the object), so “the hen laid an egg” is correct.

Memory Tricks

Memory trick: L-A-Y has an A, like “an object” or “place.” You lay a thing down. L-I-E has an I, like “I recline.” I lie down.

A few more ways to remember:

• People lie; people lay things. If you could replace the word with place or put, use lay. If you could replace it with recline, use lie.
• Chickens lay eggs. There’s always something being laid.
• Lie down, lay it down. Say it aloud a few times; the “it” is your object.
• Past of lie is lay; past of lay is laid. Repeat it like a tongue twister. Once it clicks, the trap disappears.

Practice: Lay or Lie?

Choose the correct form of lay, lie (recline), or lie (tell an untruth).

1. Every afternoon, my grandfather ______ down for a nap.
2. Could you ______ the map on the table so we can all see it?
3. Last night I ______ awake until two in the morning.
4. The workers ______ new tile in the kitchen yesterday.
5. The documents have ______ in that drawer for years.
6. The witness admitted she had ______ about where she was.

Answer Key

1. lies (reclining, present tense, third person)
2. lay (placing the map; map is the object)
3. lay (reclining, past tense of lie)
4. laid (placing tile, past tense of lay)
5. lain (resting, past participle of lie)
6. lied (told an untruth)

Number 3 is the one most people miss. If you got it, you’ve beaten the trap. Next, try who vs. whom or browse more confusing pairs in our tricky words guide. If verb tenses still feel shaky, our grammar rules guide covers the basics.

The Bottom Line

Lay means place and needs an object (lay / laid / laid / laying). Lie means recline and takes no object (lie / lay / lain / lying). The trap is that lay is also the past tense of lie, so “Yesterday I lay down” is correct. Use lie low when you want the traditional form, and remember that lie meaning “fib” is simply lied. Keep the chart handy, and this pair stops being scary. You’ll find more charts like this one throughout GrammarVista.com USA.