how to print project name on blade file Laravel 5.2

I need print My project name and task name on subtask blade file. My problem is this, I have project management app and its contain projects and one project have many tasks and one task have many subtasks. this is my relationship between task and subtasks task model

Task Model
    public function subtasks(){
        return $this->hasMany(Subtask::class);
    }



Subtask model
    public function task(){
        return $this->belongsTo(Task::class);
    }

and my subtask data input file is :

subtask/form.blade.php

<h4>Add Sub Task</h4>
 <form class="form-vertical" role="form" method="post" action="">
     <div class="form-group">
     <input type="text" name="task_name" class="form-control" id="name" value="">
     @if ($errors->has('task_name'))
         <span class="help-block"></span>
     @endif
     </div>
     <div class="form-group">
         <button type="submit" class="btn btn-info">Create Task</button>
     </div>
     <input type="hidden" name="_token" value="">
 </form>

this is my subtaskcontroller

public function store(Request $request,$projectId,$taskId)
    {
        $subtask = new Subtask;
        $subtask->subtask_name = $request->input('task_name');
        $subtask->task_id = $taskId;
        $subtask->project_id = $projectId;

        $subtask->save();
        //
    }

I need print My project name and task name on the subtask.blade.php how can I do this? Edited please see my controller show

public function show($id)
    {
        $task = $subtask->task;
        $project = $task->project;
        return view('subtasks.form', ['subtask' => $subtask, 'task' => $task, 'project => $project]);
        //
    }

how should I replase show($id) here

Edited subtask store method

 public function store(Request $request,$projectId,$taskId)
    {
        $subtask = new Subtask;
        $subtask->subtask_name = $request->input('task_name');
        $subtask->task_id = $taskId;
        $subtask->project_id = $projectId;

        $subtask->save();
        //
    }

subtask show method

public function show($id)
{
    $subtask = Subtask::findOrFail($id);
    $task = $subtask->task;
    $project = $task->project;
    return view('subtasks.form', ['subtask' => $subtask, 'task' => $task, 'project => $project]);
    //
}

via Chebli Mohamed