FIx alignment of two texts

        <div class="collapse navbar-collapse navbar-menubuilder">
            <ul class="nav navbar-nav navbar-right">

      <div class= "text">
<form action="login.php" method="post" >
      <input type="text" name="username" id="username" class= "input" placeholder="Username" value="" required>
      <input type="password" name="password" class= "input" id="password" placeholder="Password" required>
	<input class="btn btn-primary " id="button" type="submit" name="submit" value="Sign-in">
     </form>
     </div>
     
     
     <div class= "row">
         <div class="col-md-11 text-left button password" style= "color:red;">

                  <?php 
if($_GET['i'])
{
 echo "Invalid username or password";
}
?>     </div>
     
     
     
    <div class="col-md-11 text-right button password">
    <div style= "padding-left:50px;">

    <a href="forgot.php">Forgot your Password? </a>
    </div>
    </div>
   </div>
            </ul>
        </div>

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How can I make the invalid, and forget password on the same line, The invalid is always a little before it and the forgot password goes down.