لا

لا

No.

Here, 'لا' negates the verb 'أريد' indicating a negation of the desire to do an action.

لا أريد الذهاب إلى الحفلة.

I don't want to attend the party.

Here, the first 'لا' is used as a simple negative response (no), and the second 'لا' negates the verb 'أحب' expressing a dislike.

لَا، أنا لا أحب القهوة.

No, I don't like coffee.

Here, 'لا' is part of the word 'ألا', which is used to form a negative question seeking affirmation.

كل شيء واضح هنا، ألا تعتقد ذلك؟

Everything is clear here, don't you think so?