The verb "lie" is an irregular verb in English with two distinct meanings and conjugations, making it unique and sometimes confusing.

    1. To recline or rest:
        In this sense, "lie" means to be in or assume a horizontal or resting position.
        In the present simple tense, it follows the base form for most subjects: "I lie," "you lie," "he/she/it lies," etc. For example, "I lie down every afternoon."
        In the past simple tense, "lie" changes to "lay": "Yesterday, I lay down for a nap."
        The past participle form is "lain": "I have lain on this bed before."
        Example sentence: "She has lain in bed all day because she's not feeling well."

    2. To tell an untruth:
        In this sense, "lie" means to say something that is not true.
        In the present simple tense, it follows the base form for most subjects: "I lie," "you lie," "he/she/it lies," etc. For example, "He lies to his parents about his grades."
        In the past simple tense, "lie" changes to "lied": "He lied about his whereabouts last night."
        The past participle form is "lied": "They have lied to cover up their mistakes."
        Example sentence: "She admitted that she had lied about her age."

Usage Notes

    - To recline or rest:
        Incorrect: "Yesterday, I lied down for a nap."
        Correct: "Yesterday, I lay down for a nap."

    - To tell an untruth:
        Incorrect: "He lay about his whereabouts last night."
        Correct: "He lied about his whereabouts last night."

Understanding the difference between these two meanings and their respective conjugations is important for accurate communication. The verb "lie" is a common source of confusion for English learners due to its dual meanings and irregular forms.