BadMethodCallException Call to undefined method Illuminate\Database\Query\Builder::pareents()

Pareent.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Pareent extends Model
{
    //
    protected $fillable = [
        'pfname',
        'plname',
        'type',
        'address_id',
        'contact_id'
    ];

    public function Student(){
        return $this->belongsToMany('App\Student');
    }

    public function Address(){
        return $this->hasOne('App\Address');
    }

    public function Contact(){
        return $this->hasOne('App\Contact');
    }
}

Student.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Student extends Model
{
    //
    protected $fillable = [
        'fname',
        'mname',
        'lname',
        'dob',
        'sex',
        'yeargroup',
        'school_id',
        'address_id',
        'contact_id',
        'emgccontact_id'
    ];

    public function Address(){

        return $this->belongsTo('App\Address');

    }

    public function Pareent(){

        return $this->belongsToMany('App\Pareent');

    }

    public function Contact(){

        return $this->hasOne('App\Contact');

    }

    public function Addition(){

        return $this->hasOne('App\Addition');

    }

    public function Emgccontact(){

        return $this->hasOne('App\Emgccontact');

    }

    public function School(){

        return $this->belongsTo('App\School');

    }
}

StudentsController.php

public function store(Request $request)
    {
        //
        if(Auth::check()){

    $parent = Pareent::create([
                'pfname'=> $request->input('pfname1'),
                'plname'=> $request->input('plname1'),
                'type'=> $request->input('type1'),
                'address_id'=> $paddress->id,
                'contact_id'=> $pcontact->id
            ]);

    $student = Student::create([
                'fname'=> $request->input('fname'),
                'mname'=> $request->input('mname'),
                'lname'=> $request->input('lname'),
                'sex'=> $request->input('sex'),
                'dob'=> $request->input('dob'),
                'yeargroup'=> $request->input('year_group'),
                'school_id'=>$request->input('school'),
                'address_id'=>$st_address->id,
                'contact_id'=>$st_contact->id,
                'emgccontact_id'=>$emgc->id
            ]);

            $student->pareents()->attach($parent->id);
}
}

Your relationship on Student is called Pareent not pareents

try to not Name your relationship exact like what your model is in your case your model and relationship is same and also you are calling wrong relationship as #tykus said. try to rename your Parent relationship from

public function Pareent(){

        return $this->belongsToMany('App\Pareent');

    }

// to 
public function pareents(){

        return $this->belongsToMany('App\Pareent');

    }
// and then try
 
//also in your parent table for many to many specify your foreign key in your relationship
like

   public function Student(){
        return $this->belongsToMany('App\Student','parent_id');
    }
// where parent_id is the the foreign key of child 

Ok so now I want to display a selected school on the edit page but i get Undefined variable: schools (View: C:\xampp\htdocs\stem\resources\views\student.blade.php)

student.blade.php

<div class="row">
    <div class="col-md-4">
        <div class="form-group label-floating">
        <label for="student-school-name" class="control-label">School</label>
        <select class="form-control" name="school" id="student-school-name">
            <option selected hidden>Choose School</option>
            @foreach($schools as $school)
                @if($student->school->id === $school->id)
                    <option selected value="{{$student->school->id}}">{{$school->name}}</option>
                @else
                    <option value="{{$school->id}}">{{$school->name}}</option>
                @endif
            @endforeach
        </select>
        </div>
    </div>
</div>

Students Controller edit function

 public function edit(Student $student)
    {
        //
        $student = Student::where('id', $student->id )->first();
        $schools = School::orderBy('name', 'asc')->get();
        $cities = City::orderBy('name', 'asc')->get();
        return view('student',['student'=>$student],['cities'=>$cities],['schools'=>$schools]);
    }

Just one array:

return view('student1',['student'=>$student, 'cities'=>$cities, schools'=>$schools]);

It can be easier to read if you use PHP's compact function, which produces the same array:

return view('student1', compact('student', 'cities', 'schools'));