[
    {
        "role": "user",
        "content": "whose%20posting%20things%20or%20who%27s%20posting%20things"
    },
    {
        "role": "assistant",
        "content": "Here\u2019s how to decide whether to use **\u201cwhose posting things\u201d** or **\u201cwho\u2019s posting things\u201d** \u2014 these two phrases are very different grammatically.\n\n---\n\n### 1. \u201cWho\u2019s posting things\u201d\n\n- **Who\u2019s** is a contraction of **\u201cwho is\u201d** or **\u201cwho has.\u201d** ([merriam-webster.com](https://www.merriam-webster.com/grammar/whos-whose-difference-usage-pronouns?utm_source=openai))  \n- **Use \u201cwho\u2019s posting things\u201d** when you mean **\u201cwho is posting things\u201d** or **\u201cwho has been posting things.\u201d**\n\n**Examples:**\n\n- \u201cWho\u2019s posting things on the forum today?\u201d \u2192 \u201cWho is posting things on the forum today?\u201d\n- \u201cI have no idea who\u2019s been posting spoilers.\u201d \u2192 \u201cI have no idea who has been posting spoilers.\u201d\n\n---\n\n### 2. \u201cWhose posting things\u201d\n\n- **Whose** is the possessive form of **who** \u2014 it shows **ownership** or **belonging**. ([scribbr.com](https://www.scribbr.com/commonly-confused-words/whose-vs-whos/?utm_source=openai))  \n- **Use \u201cwhose posting things\u201d** only if you mean **\u201cbelonging to whom is the act of posting things.\u201d** Often, people might write this by mistake when they really mean \u201cwho\u2019s posting things.\u201d\n\n**Example:**\n\n- \u201cWhose posting things drew all the attention?\u201d \u2192 asking *who owns* the posting that drew attention (rare phrasing, might be clearer as \u201cWhose post?\u201d or \u201cWho posted it?\u201d)\n\n---\n\n### A quick test you can use:\n\n**Try replacing \u201cwho\u2019s\u201d with \u201cwho is\u201d or \u201cwho has.\u201d**  \n- If the sentence still makes sense, go with **who\u2019s**.  \n- If it doesn\u2019t, then **whose** is likely correct. ([grammarflex.com](https://www.grammarflex.com/knowledgebase/whos-vs-whose?utm_source=openai))\n\n---\n\n### Bottom line\n\n- If you mean **\u201cwho is posting things?\u201d**, write **who\u2019s posting things**.\n- If you mean to ask about **ownership** \u2014 *\u201cto whom do these posts belong?\u201d* \u2014 you might use **whose**, but often that meaning is clearer with a slightly different phrasing.\n\n---\n\nNeed help with another pair like this (e.g. it\u2019s vs. its, your vs. you\u2019re)?"
    }
]