@foreach ($group as $tasks)
<table>
    <thead>
        <tr>
            <th>Task</th>
            <th>User</th>
            <th>Completed at</th>
        </tr>
    </thead>
    <tbody>
        @foreach ($tasks as $user_task)
            <tr>
                <td>{{ $user_task->task->title }}</td>
                <td>{{ $user_task->user->full_name() }}</td>
                <td>{{ $user_task->human_date() }}</td>
            </tr>
        @endforeach
    </tbody>
</table>
@endforeach