Regular Expression: "ng" followed by [aeiou] should be a match by itself

[dee-u]

The first commented regular expression almost fits my need, except I need it to find "ng" followed by either a,e,i,o,u as a match itself. Been trying for hours to no avail.

Example:
tanga should return "ta" and "nga"
nganga = nga nga
amboy = am boy
tomboy = tom boy

var bla;

bla = "nganga";

var result;
//var syllableRegex = /[^aeiou]*[aeiou](?:[^aeiou]*$|[^aeiou](?=[^aeiou]))?/gi;
var syllableRegex = /[^aeiou]*[aeiou](?:[ng](?=aeiou)*$|[^aeiou]*$|[^aeiou](?=[^aeiou]))?/gi

while (result = syllableRegex.exec(bla)) 
{
  var Match = result[0];
  alert(Match);
  alert(syllableRegex.lastIndex);
}

Any help will be greatly appreciated.