> 
> im working on a translation project and i need to modify some characters at the end for example if user types words like:
> 
> 
> 

typed word: **"yilanin"** => target word (what i want) :**"yilaNG"**

**"suyunin"** => **"suyuNG"**

**"kalinin"** => **"kaliNG"**

**"batinin"** => **"batiNG"**

etc etc...

But i have a problem: i don't want to modify **"nin"** characters if they are at the middle or at the beginning of a word like:

**"kinindan\*"" => \*\*"kinindan"**

**"sininteki**"" => **"sininteki"**

**"nin"** => **"nin"**

**"ninkisi"** => **"ninkisi"**

etc etc...

i mean every **"xxxnin"** to **"xxxNG"**,

**"xxxninxxx"** to **"xxxninxxx"**(no modification),

**"nin"** to **"nin"** (no modification)...

i tried to explain my problem very clearly and bascially i hope you understand...

```js
$(document).ready(function(){

$("#ta_1").keyup(function(event) {

  var text2 = $(this).val();

  text2 = text2.replace(/([abcçdefgğhıijklmnoöprsştuüvyzABCÇDEFGHIİJKLMNOÖPRSTUÜVYZ])nin$/g, '$1NG');

  $("#ta_1").val(text2);

});

});
```

```html
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<meta charset="utf-8" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

</head>

<body>

  <textarea id="ta_1" rows="5" cols="28"></textarea>

</body>

</html>
```