Formal business letters are used for professional correspondence within the business world. They follow a specific format that includes various elements, such as date, sender's address, recipient's address, salutation, body paragraphs, closing, and signature. The "re" part in a formal business letter refers to the subject of the letter, where the writer briefly explains the purpose or topic of the correspondence. Here is a detailed description of the formal business letter format with "re": 1. Sender's Address: Begin by placing the sender's address aligned to the left margin of the paper. Include the full name, job title, company name, complete mailing address, and any relevant contact information like email or phone number. 2. Date: On the next line, but aligned to the right margin, include the date of writing the letter. Write the full date including the day, month, and year. For example, "January 1, 2023." 3. Recipient's Address: Skip a line and write the recipient's address below the date. Include the full name, job title, company name, mailing address, and contact information if available. Address the recipient with their appropriate title, such as "Mr.," "Ms.," or "Dr." 4. Salutation: Skip another line after the recipient's address and write a formal salutation. Use the recipient's last name preceded by an appropriate title. For instance, "Dear Mr. Smith," or "Dear Dr. Johnson,". 5. Body Paragraphs: Start the letter's content by addressing the main purpose or topic of the letter. Clearly state the "re" part, followed by a colon. Then proceed with the body paragraphs, providing concise and relevant information related to the subject. Maintain a professional tone and structure the paragraphs accordingly. 6. Closing: Once you finish writing the main content, it's time for the closing of the letter. Use a formal closing phrase, such as "Yours sincerely," or "Kind regards," followed by a comma. 7. Signature: Skip a few lines after the closing and type your full name. Sign your name using a pen in the space between the closing phrase and your typed name. If applicable, you can also include your job title or any relevant designations beneath your signature. Different types of formal business letter formats with "re" include: 1. Letters of Inquiry: These letters are written to request information or make an inquiry regarding a specific product, service, or opportunity. Include the subject of your inquiry in the "re" line. 2. Letters of Complaint: When you have a complaint or issue to address with a company or individual, use this format. Clearly mention the subject of your complaint in the "re" line. 3. Letters of Application: When applying for a job or position, a formal letter of application is used. The "re" line in this case would state the job title or position you are applying for. 4. Letters of Recommendation: These letters are written to recommend a person's skills, qualifications, or character for a specific purpose, often related to a job application or academic program. The "re" line should specify the purpose and individual being recommended. Remember, maintaining a professional and well-structured format in your formal business letters not only helps convey your message effectively but also reflects your professionalism and attention to detail.