Is it grammatically correct to write

"based on an available of an item or a service?"

If it is wrong, how about 'based on the available of an item or a service?"

please help me.

  • 5
    Any dictionary should tell you that available is an adjective and that the noun form is availability. – StoneyB on hiatus Sep 21 '15 at 1:36
  • Thanks.. I just wondered whether there were any other form or usage of "available". Thanks.~ – user22519 Sep 21 '15 at 2:11
  • Well, there is a longer version: "based on the assumption that (an item or service) is/will be available." – WhatRoughBeast Sep 21 '15 at 2:38

Available is not a noun and following sentences you wrote are incorrect:

Based on an available of an item or a service

Based on the available of an item or a service

Grammatical sentences are:

Based on the availability of an item or a service


Based on the assumption that an item or a service is available (as WhatRoughBeast has said)

You can also write:

(It is) based on whether or not an item or a service is available.

Here, you can use the adjective 'available' in the sentence.

  • Did you mean to say that available is not a noun? – Brian Hitchcock Sep 21 '15 at 8:30
  • Please check my first and last sentences. @BrianHitchcock – Rucheer M Sep 21 '15 at 8:40
  • I was putting it too politely. Available is NOT a noun. If it were, the OP's sentences would be grammatically correct; but as you noted, they are not. – Brian Hitchcock Sep 21 '15 at 9:52
  • Again, you're right. It was my misunderstanding. Actually, I said it correctly in my answer, but could not get your comment. Yes, Available is an adjective, while Availability is a noun. Appreciate your effort to point out my mistake. – Rucheer M Sep 21 '15 at 10:05
  • Hate to say it, but you're still calling "available" a noun in the last sentence. – Crazy Eyes Sep 21 '15 at 14:37

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