Lay vs Lie: Examples & How to Fix It
Lay needs a direct object — you lay something down (“lay the book on the table”). Lie doesn’t — you lie down yourself. The tense trap: the past of lie is lay (lie–lay–lain), while the past of lay is laid (lay–laid–laid). Paste your own sentence into the free checker below to fix it in one click.
Lay needs a direct object — you lay something down (“lay the book on the table”). Lie doesn’t — you lie down yourself. The tense trap: the past of lie is lay (lie–lay–lain), while the past of lay is laid (lay–laid–laid).
How it works
- 1Spot the pattern. Ask “lay what?” If the sentence answers with a thing being placed — the baby, the book, the tiles — you need lay. If nothing receives the action and the subject is simply reclining or resting, you need lie.
- 2Apply the rule. Pick the verb first (object → lay; no object → lie), then match the tense: lie–lay–lain (“I lie down; yesterday I lay down; I have lain down”) and lay–laid–laid (“I lay it down; yesterday I laid it down; I have laid it down”). “Laid” always involves an object.
- 3Check your sentence. Paste your text into the grammar checker below — it flags the issue and shows the correction.
- 4Re-read it. Read the corrected version aloud to confirm it says exactly what you meant.
The rule
Lay is transitive: it always takes a direct object (“lay the report on my desk”). Lie is intransitive: no object, the subject just reclines or rests (“lie down”, “the keys lie on the counter”). Present tense is the easy case — the past tenses are where everyone slips, because the past of lie is “lay”: lie–lay–lain, versus lay–laid–laid.
How to spot it
Ask “lay what?” If the sentence answers with a thing being placed — the baby, the book, the tiles — you need lay. If nothing receives the action and the subject is simply reclining or resting, you need lie.
How to fix it
Pick the verb first (object → lay; no object → lie), then match the tense: lie–lay–lain (“I lie down; yesterday I lay down; I have lain down”) and lay–laid–laid (“I lay it down; yesterday I laid it down; I have laid it down”). “Laid” always involves an object.
The most common mistake
Saying “I’m going to lay down”. It’s everywhere in speech, but there’s no object — the correct verb is lie (“I’m going to lie down”). The reverse slip, “yesterday I laid on the beach”, should be “I lay on the beach”. If you’re not sure whether your sentence has the problem, paste it into the checker above — it catches this and explains the fix in plain language.
| ❌ Incorrect | ✓ Corrected | Why |
|---|---|---|
| I need to lay down for an hour. | I need to lie down for an hour. | No object = lie |
| Lie the baby in the crib. | Lay the baby in the crib. | Has an object (the baby) = lay |
| Yesterday I laid on the beach all day. | Yesterday I lay on the beach all day. | Past of lie is lay |
| She has laid in bed since noon. | She has lain in bed since noon. | Perfect of lie is lain |
| He lay the report on my desk this morning. | He laid the report on my desk this morning. | Past of lay is laid |
Frequently asked questions
Is it “lay down” or “lie down”?
“Lie down” — there’s no object, so the verb is lie. “Lay down” is only right when you lay something down: “lay down your bag”, “lay the rules down”.
What is the past tense of lie?
Lay — which is exactly why the two verbs get tangled. “Today I lie down; yesterday I lay down; I have lain down.” (Lie meaning “to tell an untruth” is regular: lie–lied–lied.)
When do I use “laid”?
Only with an object. Laid is the past and past participle of lay: “she laid the tiles”, “he has laid the table”. If nobody is placing anything, laid is the wrong word.
Is “the keys are laying on the counter” correct?
No — nothing is being placed, so it’s “the keys are lying on the counter”. Use laying only when there’s an object: “I’m laying the keys on the counter”.
How do I check my own writing for this?
Paste your text into the free grammar checker on this page. It flags the issue, suggests a correction, and explains why — so you learn the rule, not just the fix.
Is it free?
Yes — 3 free runs every day with up to 500 words per run, no credit card to start. Upgrade for a larger word pool, or use the free iOS app.