My navbar after collapsing doesn't display items as list - html

Question

I want my navbar to appear as a list after collapsing when User press toggle button but it appears in one line and not as a list
This is how the navbar looks i dont want it
This is how i want it to look
<!-- Navbar -->
<nav class="navbar navbar-light navbar-expand-md bg-dark">
<i class="fas fa-child text-warning fa-2x"></i>
<button type="button" class="navbar-toggler bg-light" data-toggle = "collapse" data-target ="#nav">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse justify-content-between" id="nav">
<ul class="navbar nav">
<li class = "nav-item">
<a class="nav-link text-light font-weight-bold text-uppercase px-3" href="#">Home</a>
</li>
<li class = "nav-item">
<a class="nav-link text-light font-weight-bold text-uppercase px-3" href="#">Skills</a>
</li>
<li class = "nav-item dropdown" data-toggle = "dropdown">
<a class="nav-link text-light font-weight-bold text-uppercase px-3 dropdown-toggle" href="#">Projects</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Project 1</a>
<a class="dropdown-item" href="#">Project 2</a>
<a class="dropdown-item" href="#">Project 3</a>
<a class="dropdown-item" href="#">Project 4</a>
</div>
</li>
<li class = "nav-item">
<a class="nav-link text-light font-weight-bold text-uppercase px-3" href="#">Team</a>
</li>
<li class = "nav-item">
<a class="nav-link text-light font-weight-bold text-uppercase px-3" href="#">Contact</a>
</li>
</ul>
<form class="form-inline">
<div class="input-group">
<input type="text" name="" placeholder="Search" class="form-control">
</div>
<div class="input-group-append">
<button class="btn">
<i class="fas fa-search text-muted "></i>
</button>
</div>
</form>
</div>
</nav>
<!-- End of navbar -->

Answer 1

how about this?
<!-- Navbar -->
<nav class="navbar bg-dark navbar-dark">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-
toggle="collapse" data-target="#collapsibleNavbar" aria-
expanded="true">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse show"
id="collapsibleNavbar" style="">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="javascript:void(0)">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0)">Link</a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0)">Link</a>
</li>
<li>
<form class="form-inline">
<div class="input-group">
<input type="text" name="" placeholder="Search"
class="form-control">
</div>
</li>
</ul>
</div>
</nav>
<!-- End of navbar -->