Write a friendly letter in French inviting your friend to a party.

To write a friendly letter in French inviting your friend to a party, here's what you can do:

1. Start with the Date: Write the date on the upper right-hand corner of your paper, or you can simply skip a few lines and start with "Cher(e) [friend's name],".

2. Greeting: Begin the letter with a friendly greeting. You can use "Cher(e)" followed by your friend's name, which means "Dear" in English. For example, "Cher(e) [friend's name],".

3. Introduction: Introduce yourself and set the context for the invitation. You can start by saying how you're doing and mentioning the purpose of the letter. For instance:
"J'espère que tu vas bien. Je t'écris pour t'inviter à une fête que j'organise."

Translation: "I hope you're doing well. I'm writing to invite you to a party that I'm organizing."

4. Provide Details: Include all the necessary details about the party, such as the date, time, and location. Make sure to mention any specific instructions or attire if applicable. You can say it like this:
"La fête aura lieu le [date] à [time] à [location]."

Translation: "The party will take place on [date] at [time] at [location]."

5. Invitation and Excitement: Use warm and inviting language to express your excitement about your friend attending the party. For example:
"Ce serait vraiment génial si tu pouvais venir ! J'ai hâte de passer une excellente soirée avec toi et nos amis."

Translation: "It would be really great if you could come! I'm looking forward to having a great evening with you and our friends."

6. Closing: End the letter with a friendly closing remark and sign off with an appropriate salutation. For instance, you can write:
"J'espère te voir bientôt. À très bientôt ! Amicalement, [Your name]."

Translation: "I hope to see you soon. See you very soon! Best regards, [Your name]."

Remember to write your letter neatly and clearly. You can use online translation tools or consult a French dictionary to verify any words or expressions you are uncertain about.