FluentLab

Confusable pair · B2

Lay or lie?

Lay needs an object: you lay something down. Lie does not: you lie down yourself. The tenses are what trip people up. Lie goes lie, lay, lain, and lay goes lay, laid, laid — so the past of lie is spelled the same as the present of lay. If you can ask "lay what?" and get an answer, you want lay.

Which word, and why

lay

takes an object: lay / laid / laid

To put something down carefully.

lay the table · lay it down · laid the foundations

lie

takes no object: lie / lay / lain

To be or get into a horizontal position.

lie down · lying on the sofa · the town lies south of here

Now use it

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Just   down for half an hour and see if the headache passes.

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