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    #1

    to be formed in v. form in

    For the above context, I would like to ask you that what is the difference between

    1. Most caves are formed in limestone, dolomite, gypsum and marble.

    2. Most caves form in limestone, dolomite, gypsum and marble.

    The first one is the original but not seems correct to me. The second is the one in my mind.

    Source: National Geographic Kids

    Thank you.

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    #2

    Re: to be formed in v. form in

    And is the word "formation" here a geological term or a general one i.e everyday life meaning? It should be general because
    "formation of a star" or "formation of a black hole" cannot be geological.

    Thank you.

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    #3

    Re: to be formed in v. form in

    Quote Originally Posted by hhtt21 View Post
    For the above context, I would like to ask you that what is the difference between

    1. Most caves are formed in limestone, dolomite, gypsum and marble. - This is passive. Water forms the cave.

    2. Most caves form in limestone, dolomite, gypsum and marble. - This is neither active nor passive. It's "middle voice" or "ergative" -- the cave forms itself, or it doesn't matter what forces (water, pressure, etc.) form the cave.

    The first one is the original but not seems correct to me. The second is the one in my mind.

    Source: National Geographic Kids

    Thank you.
    I don't see much difference.

    Consider:
    The butter was softened in the sunlight on the table. -- The warm sun softened the butter.
    The butter softened in the sunlight on the table. -- The emphasis is that the butter became soft.
    I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.

  4. Barb_D's Avatar
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    #4

    Re: to be formed in v. form in

    Quote Originally Posted by hhtt21 View Post
    And is the word "formation" here a geological term or a general one i.e everyday life meaning? It should be general because
    "formation of a star" or "formation of a black hole" cannot be geological.

    Thank you.

    I don't understand the difference you are trying to show. What is a "general" meaning?
    I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.

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    #5

    Re: to be formed in v. form in

    Quote Originally Posted by Barb_D View Post
    I don't see much difference.

    Consider:
    The butter was softened in the sunlight on the table. -- The warm sun softened the butter.
    The butter softened in the sunlight on the table. -- The emphasis is that the butter became soft.
    What about the second part of the question which is about "formation" ?

    Thank you.

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    #6

    Re: to be formed in v. form in

    Quote Originally Posted by hhtt21 View Post
    What about the second part of the question which is about "formation" ?
    "Formation" is commonly used to refer to geological formations such as caves, pillars, and arches. Does that answer your question?
    I am not a teacher.

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    #7

    Re: to be formed in v. form in

    Quote Originally Posted by GoesStation View Post
    "Formation" is commonly used to refer to geological formations such as caves, pillars, and arches. Does that answer your question?
    Yes, but does it also have an everyday usage?

    Thank you.

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    #8

    Re: to be formed in v. form in

    Quote Originally Posted by hhtt21 View Post
    Yes, but does it also have an everyday usage?
    I'd see that as a pretty everyday usage. We had a great time on our trip to the Southwest. We especially liked the wonderful formations at Valley of Fire State Park.
    I am not a teacher.

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