Formal sentence structure can feature older forms: To whom are you speaking? Also, “speaking” is a less commonly used word, lending it a formal tone. Informal sentence structure usually opts for the participle (in this case “to” ) to be at the end of the sentence. Who are you talking to? “talking” is a common and more informal term. Formal ways to refer to attached documents: Attached, you will find a… (file, document, contract, invitation, itinerary, etc) You will find… attached Please see the …attached Informal: I’ve attached a(n)… Formal requests: I ask you to give me… I would be grateful if you could… Could you please provide me with … I would appreciate it if you could give me more detailed information regarding the location… If possible, I would like you to give me more information about… Please fill out the staff feedback form. So, please write down options of three dates and times Since I would like to attend the event but I’m not informed, I would be grateful if you could… Informal (and also quite universal): Please give me Please let me know about… I was wondering if you could give me more details about… Formal / Informal mixtures: Here is the attached file. I’ve heard about a Staff Development day and I would like to clarify what it would be. Given that I have a meeting scheduled that morning, maybe I won’t be able to participate in the event. I’ve heard there will be activities but I don’t know around which topic they will revolve. Looking forward to your reply Asking for information: Formal: I would like to know the focus, activities, length, paricipants, trainers and location of the event. Informal: Please let me know what the event will be about, what we will do there, how long it will last, who will be there, who will do the training, and finally, where it will be. I was wondering who will the participants will be. Who will the participants be?