2. Young lady to slightly older man: I think people almost always use em - anh. There are occasions where the lady uses "tui/tôi" and refers to the man as "anh". Thought it will be weird, I heard Northerners use them. (Damn North people) And yes in marriage the woman will always be "em" and the man will always be "anh". Yes. This is a sexist country. I hate it. 3. Person to his/her/whatnot's parents/grandparents: "a child refers to himself as con when talking to parents and grandparents". Technically. But it differs when you're talking to Northerners or Southerners - In (most of) the South: a child refers to themselves as "con" to both parents and grands - In the North: they refer to themselves as "con" to parents but "cháu" to grandparents - For the rest of the country, if they use any other kinds of pronouns, I don't know. + And yes, even if you're 90 you still have to use "con" to talk to your parents. I am sorry for the late, long answer. I can't contain myself. If you still have any questions you can message me.

1. In informal situations there are A LOT more pronouns you can use, based on your level of familiarity with the group of people. - If you and the people you talk to are good friends, I: tui (this is a well-known, well-used variation of tôi), you guys: mấy/các người. Example: tui thích ăn kem, mấy/các người có thích ăn kem không? I like ice-cream, do you guys like ice cream? - OR: I: tao. You guys: tụi bây. You might be informed that "tao" and "tụi bây" are offensive but it's just extremely colloquial and is used among goooood friends. Example: tao nghĩ tụi bây nên mang theo tiền. I think you guys should bring money. - About the "mình", I think people use it on the internet more often, and text books, sounds a lil formal for me. If two people meet for the first time they should use this first person pronoun. If you are in a formal situation, - To younger peopleI: chị, you guys: mấy/các em. (Though I can't imagine being formal to kids younger than me lol so you can also say "mấy đứa", basically meaning "you kids" but I swear it's not condescending, you can even use it on your friends). Example: Bây giờ chị sẽ tổ chức chơi trò chơi, mấy/các em có muốn chơi không? Now I will organize a game, do you guys want to play? *Northerners usually use "mấy" and the Southerners use "các" but both are interchangeable.

Thanks, I understand better now :)

oh, maybe your questions are so long, not really clear and too complicated for Vietnamese like me to answer so no one has answered you yet, :). I'm also afraid of not being able to satisfy you but I'll try my best. :) yeah, even for us, we sometimes find it really hard to choose a suitable pronoun in many cases of conversations. 1) yeah, you're right, if you're at work, in formal meetings, tôi is always the right pronoun to use. in reunions, close meetings... it depends on what are participants in the meeting. if they are almost only your friends or slightly younger and older, mình is an okay word to use. if there anyone who is much older than you there I suppose you better use a suitable pronoun with him/her. 2) yes, in normal relationship and normal situation, it's okay to use em and anh in a talk between a junior and a senior, disregard they're men or women or man and woman... :) 3) children always call themselves con in conversations with their parents no matter how old they are. 4) a couple can use em - anh to call each other disregard their ages to make their relationship closer and more romantic (as most of other normal couples do so) :) hope you're satisfied somewhat, see you :) PS: you better put this in "Answer" tab :)