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  1. Junior Member
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    #1

    X is one of the most useful chemicals for humans to exist.

    Hello everybody again. Please, is the sentence in the title OK, or should I replace "to" with "that"?

    I'm a bit suspicious if I use "to" will that sound like "existence" refer to humans? Or does it naturaly mean that "existence" refer to chemicals?
    I'm not an English teacher. English is not my native language. Feel free to correct any sentence I write, regardless of the topic. It's a great way of learning and practicing English. Thank you!

  2. Moderator
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    #2

    Re: X is one of the most useful chemicals for humans to exist.

    As far as I know there is no chemical called 'X'.

    Your meaning is not clear at all.

  3. Charlie Bernstein's Avatar
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    #3

    Re: X is one of the most useful chemicals for humans to exist.

    Quote Originally Posted by lupicatulum View Post
    Hello everybody again. Please, is the sentence in the title OK, or should I replace "to" with "that"?

    X is one of the most useful chemicals for human existence.


    Or: X is one of the most useful chemicals that exists.


    It depends on what you mean.


    I'm a bit suspicious. If I use "to," will that sound like "existence" refers to humans? I don't know. Where would you put "to"?

    Or does it naturally mean that "existence" refers to chemicals?
    I don't know. Your sentence about chemical X is wrong, so I don't know what you're trying to say. Can you tell us more?
    I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.

  4. Junior Member
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    #4

    Re: X is one of the most useful chemicals for humans to exist.

    I want to join three sentences:

    1) X is one of the most useful chemicals that exists.

    2) X is one of the most useful chemicals that humans use.

    3) X is one of the most useful chemicals for humans.

    Imagine like we're talking about sodium chloride.
    Last edited by lupicatulum; 11-Mar-2017 at 02:17.
    I'm not an English teacher. English is not my native language. Feel free to correct any sentence I write, regardless of the topic. It's a great way of learning and practicing English. Thank you!

  5. Charlie Bernstein's Avatar
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    #5

    Re: X is one of the most useful chemicals for humans to exist.

    Quote Originally Posted by lupicatulum View Post
    I want to join three sentences:

    1) X is one of the most useful chemicals that exists.

    2) X is one of the most useful chemicals that humans use.

    3) X is one of the most useful chemicals for humans.

    Imagine ​that we're talking about sodium chloride.
    Easy!

    - Sodium chloride is one of the most useful chemicals.
    I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.

  6. Junior Member
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    #6

    Re: X is one of the most useful chemicals for humans to exist.

    Nnnnope ...

    Because I'd like to emphasis that "it currently exist" (did not exist before), that "humans use it" (some chemicals don't) and not just use it for industrial purpouses, but for personal usage too. So the chemical is invented FOR them (us).
    I'm not an English teacher. English is not my native language. Feel free to correct any sentence I write, regardless of the topic. It's a great way of learning and practicing English. Thank you!

  7. Junior Member
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    #7

    Re: X is one of the most useful chemicals for humans to exist.

    I am not sure why do you all insist on "X".

    "X" is a variable. A placeholder, as you named it.

    That variable can contain any data IF and only IF X
    a) is a chemical (yes, compound) AND
    b) exist today (but did not exist until few hundered years ago) AND
    c) is very useful to humans

    It's a variable, but the data contained in that varable cannot be carbon and cannot be sodium chloride, since they don't comply with IF statements.

    How to say that in common language?

    I want to join three sentences:

    1) X is one of the most useful chemicals that exists.

    2) X is one of the most useful chemicals that humans use.

    3) X is one of the most useful chemicals for humans.
    Please help me with English, not chemistry.
    Last edited by lupicatulum; 11-Mar-2017 at 15:20.
    I'm not an English teacher. English is not my native language. Feel free to correct any sentence I write, regardless of the topic. It's a great way of learning and practicing English. Thank you!

  8. Charlie Bernstein's Avatar
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    #8

    Re: X is one of the most useful chemicals for humans to exist.

    Quote Originally Posted by lupicatulum View Post
    Nnnnope ...

    Because I'd like to emphasis that "it currently exists" (did not exist before), that "humans use it" (some chemicals we don't, and not just for industrial purposes, but for personal use, too. So the chemical was invented FOR us.
    Then say that.

    "Currently exists" doesn't mean "new." The Himalayas and the moon currently exist - and have existed for a long time.

    By the way, we didn't invent sodium chloride. Sea water is full of it. We get it by mining it, not by synthesizing it.
    I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.

  9. Charlie Bernstein's Avatar
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    #9

    Re: X is one of the most useful chemicals for humans to exist.

    Quote Originally Posted by lupicatulum View Post
    Please help me with English, not chemistry.
    We're trying! This forum is a place to get help writing English clearly, and the X confused some people when they first read it.

    I understood that you meant "fill in the blank," but others didn't. You could put in the name of a new chemical or just put in a blank, like this: ______.
    I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.

  10. Junior Member
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    #10

    Re: X is one of the most useful chemicals for humans to exist.

    I fell into a twighlight zone. I have to get out. Forget about this question. I'll come back when I'll have another one.

    Thank you all for trying to help. Different cultures ... Language barriers ...
    I'm not an English teacher. English is not my native language. Feel free to correct any sentence I write, regardless of the topic. It's a great way of learning and practicing English. Thank you!

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