Get a plural for the specified text. Works on 95% of english words.

Plural.cs

public static string GetPlural(this string name)
{
    if (string.IsNullOrEmpty(name))
    {
        return string.Empty;
    }
    name = name.Trim();
    char lastChar = name[name.Length - 1];
    switch (char.ToLower(lastChar))
    {
        case 'y':
            if (name.Length > 1)
            {
                bool abort = false;
                switch (char.ToLower(name[name.Length - 2]))
                {
                    case 'a':
                    case 'e':
                    case 'i':
                    case 'o':
                    case 'u':
                    case 'y':
                        abort = true;
                        break;
                }
                if (abort)
                {
                    name += "s";
                    break;
                }
            }
            name = name.Remove(name.Length - 1, 1);
            name += "ies";
            break;
        case 's':
            if (name.Length > 1)
            {
                switch (char.ToLower(name[name.Length - 2]))
                {
                    case 's':
                    case 'u':
                        name += "es";
                        break;
                }
            }
            break;
        case 'h':
            name += "es";
            break;
        default:
            name += "s";
            break;
    }
    return name;
}