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    • Join Date: Dec 2009
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    #1

    Question "able" and "ible"

    how to easy remeber an adjective which is derived from a verb.
    ie: exhaust---exhaustible, predict---predictable.
    some derivation book says the regular rule is,

    if a verb comes from Latin , when it derives itself to adjective. The structure is mostly like "verb + ible"
    compatible - compat + ible
    horrible - horror + ible

    the others are likely "verb + able"
    conceivable - conceive + able
    dispensable - dispense + able

    but how could i know which verb is derived from Latin? anyway i am very frustrated with these several letters when i can't spell a word accurately

    Could anyone give me some tips to overcome this problem?

  1. Offroad's Avatar
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    #2

    Re: "able" and "ible"

    I have this very same problem sometimes. All I do is use a good spell-checker. Constant reading also helps.
    Last edited by Offroad; 27-Dec-2009 at 02:09.

  2. BobK's Avatar
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    #3

    Re: "able" and "ible"

    A resonable rule of thumb is "If the word exists with a relevant/related meaning when you take the ending off, the ending is usually '-able'": examples - remark+able, depend+able, elect+able ... BUT vis+able, sens+able

    This 'rule' is not totally reliable, but it's more reliable (not relyible ) than the Latin-based one (which - as the OP pointed out - is no good if you don't know Latin, and in any case doesn't work for words derived from a Latin word ending in -abilis).

    b

  3. Nightmare85's Avatar
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    #4

    Re: "able" and "ible"

    I doubt there is a way to learn a system for this grammatic topic.
    Either you know the word or you don't know it.

    Maybe I do this by instinct - I hope it's almost always right

    Cheers!

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