Here's how to use "lain" correctly:
* Use "lain" with forms of the verb "to be" (is, am, are, was, were, been):
* "The book has lain on the table all day."
* "She had lain in the sun for hours."
* "I have been lying down for a while."
* Don't use "lain" with other verbs:
* Incorrect: "He lain the book on the table." (Should be "He laid the book on the table.")
Remember: "Lain" is about reclining or resting, while "laid" is about placing something down.
Here's a helpful tip:
* If you're unsure which to use, think about whether the subject is resting or being placed. If it's resting, use "lain." If it's being placed, use "laid."