Parse error: syntax error, unexpected 'POST' (T_STRING), expecting ',' or ';' in C:\xampp\htdocs\login.php on line 175

I'm trying to convert HTML to PHP and I got this error. This is my code. Error in the first line

echo "<h2>Welcome to INTI Shopping Website</h2>n";

echo " <form method="POST" action="#">
echo "<div class="imgcontainer">n";
echo "<img src="avatar.png" alt="Avatar" class="avatar">n";
echo "</div>n";

echo "<div class="container">n";
echo "<label for="uname"><b>Username</b></label>n";
echo "<input type="text" placeholder="Enter Username" name="username" required>n";

echo "<label for="psw"><b>Password</b></label>n";
echo "<input type="password" placeholder="Enter Password" name="password" required>n";
    
echo "<button type="submit">Login</button>n";
echo "<label>n";
echo "  <input type="checkbox" checked="checked" name="remember"> Remember me </label>n";
echo "</div>n";


echo "</form> n";