Like when something belongs to (or has a relationship with) two people.  "Dan and Jack's mother" "Dan's and Jack's mother"   Which one is correct? Would it be the same or different with more than two?  PS: Google did not bring up anything.
2589
Which option is grammatical?        There will be readings from Nikki Giovanni’s and Alice Walker’s writings.   There will be readings from Nikki Giovanni and Alice Walker's writings.      Saying it out loud the latter sounds right, but looking at it the former looks better.
68137
If my two neighbors own a cat, it’s "my neighbors’ cat". If someone famous owns a dog, what's the correct way to describe it: "someone famous’ dog"?
57767
I’m writing a dissertation on network security. I’m unsure which of the following to use:   ...89.9%, which is 57 million users.  ...89.9%, which are 57 million users.   Technically it should be are because it refers to a plural amount of people, but it doesn’t sound right to me considering that 57 million is in a sense one group.
3329
I have often heard people say "x of his" or "x of mine". But since his and mine point out ownership, isn't using "of" here doubles that ownership? Wouldn't it be more appropriate to say "x of him" or "x of them" etc.?  Example:     I was a good friend of your dad's. He told me all about you`
46929
He's a friend of mine.   That's a car of his.   Why do we use the possessive when the meaning would be the same while not using it (e.g. a friend of me and a car of him)?  I thought maybe it is short for That's a car of his [cars], but I have no way of making sure; it sounds a little odd that way to me.
51381
a) They have no child. b) They have no children.  Are both a) and b) correct? Though b) seems more common.
95934
Assume the following situation: Person A meets person B in the winter of 2009. Then he/she meets the same person in 2010 and 2011.  which sentence is true?  Since winter 2009 person A has met person B 3 times.  or  Since winter 2009 person A has met person B 2 times.  So, the main question is, if since includes the meeting in winter 2009 or not?
23444
In the sentence: "I didn't know she had a son,"   Can I say "I didn't know she has a son" instead, because he is a teenager now?  Or are both correct?
20026
I wonder which of the two is correct:        I have a red and a blue car.   I have a red and a blue cars.      or        Everyone has a left and a right arms.   Everyone has a left and a right arm.      My (non-native) inclination would be for option 1, as it sounds better.  On the other hand, in the following examples, the plural sounds better to me.    Everyone has left and right arms. I have old and new cars. (when I only have only one old car and one new car) The left and the right arms are...   But are they correct?
115869
Example:     When my mother came back from the island, she came back as a newborn Christian. [...]   was shocked, especially since none of them belonged to that religion.   (In this case, they refer to the mother's parents/brothers/sisters, and also the husband's parents/brothers/sisters. Not the husband because he was dead. And not the speaker because he was still a baby. So there's no immediate family.)  What would a native English speaker use in cases like this? Her family, my family, our family, or my relatives?
118920
This came up when reviewing a written English exercise, and I realized that I don't entirely trust my intuition on the answer.  Which of the following is correct?  Or are both valid?  (Or is it strongly advisable to rewrite the sentence in some other way?)   "I see what appears to be a man and his son." "I see what appear to be a man and his son."
32935
I understand the rules for dual possessives, but I was writing and I realized that I have no idea how the following sentence should be written.  She and Kevin's house is big.  or  Her and Kevin's house is big.  Normally for a dual possessive, if there is joint possession (two people owning one thing), only the last noun takes the possessive form, but the first sentence sounds and reads awkwardly. Is it actually correct?  The pronoun seems to be the source of the confusion, as I would have no trouble choosing between the following:  Kim and Kevin's house is big. Kim's and Kevin's house is big.  The first would be correct because the house belongs to both Kim and Kevin, so only the last noun, "Kevin", takes the possessive form. Does the same rule apply when one of the nouns is a pronoun, or is there a different rule in such cases? Can someone help me out, please?  Note: I realize that there are similar discussions already:     However, these questions only discuss the proper formation of the first-person pronoun in such cases (i.e., "I" vs. "my"). I'm interested in the rules for correctly forming the third-person pronoun.
95541
Given the sentence: "A mother beat up her daughter because she was drunk".  Is there a grammar rule that can help resolve the ambiguity of whether "drunk" refers to the mother or the daughter?  Update: The question isn't about how to rewrite the sentence. If you found the sentence already written and had no access to the author in order to sort out the ambiguity, what would be the most correct interpretation?
106809
Consider the sentence:     "She sees him not so much as her uncle as her friend."   Is this sentence correct? I feel something is missing, or perhaps I am disturbed by the extra 'as'. Compare with:     "He is not so much her friend as (he is) her uncle."   What do you suggest?
29143
For example, if I wanted to write the equivalent of  There are many automated teller machines in this city.  Would it be  There are many ATMs in this city.  or  There are many ATM's in this city. (could get confused with possessive form or contraction).  or just  There are many ATM in this city. (assuming the final s is included in Machines represented by M).  Maybe something else?
26984
Possible Duplicate:          If someone owns something I would say: Mom's car.  But if the owner is not a person, does it actually own it according to English rules or common usage? Which phrase is right?         The house windows.   The house's windows.   The windows of the house. (Or something like that.)      (Feel free to modify this question so it would be clear for other people.)
102445
I'm having some issues with a sentence that is part of the purpose in a report that I'm writing. I'm not sure if the word "communicate" (in bold) should be singular or plural.  The applications in the "set" will communicate with each other, not with other "sets".     The purpose of this report is to develop a sample set of applications   that communicates between services on the internet, mobile devices   and a central processing unit in a motor vehicle.