Unity 2D addforce problem

Hello,
I am trying to move my character and I assigned AddForce to “d” but it just starts moving then it stops and I need to press key again to start moving.
Here is my code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class movement : MonoBehaviour {
    public Rigidbody2D rb;
    public float sila;
    public Animator anim;
  
   
	// Use this for initialization
	
   
    // Update is called once per frame
    void Update () {
        if (Input.GetKeyDown("d"))
        {

        
        rb.AddForce(Vector2.right * sila * Time.deltaTime,ForceMode2D.Force);
            
            Debug.Log("key pressed");
        }
        if (Input.GetKeyUp("d"))
        {
            rb.velocity = new Vector2Int(0, 0);
            
            Debug.Log("key released");
        }
    }
}

@monstercro
you use ‘Input.GetKeyDown(“d”)’, which only fires when the key is pushed down and then stops. Change that to ‘Input.GetKey(“d”)’ instead. This will fire while the ‘d’ key is active.
` public class movement : MonoBehaviour {
public Rigidbody2D rb;
public float sila;
public Animator anim;

 // Use this for initialization
 

 // Update is called once per frame
 void Update () {
     if (Input.GetKey("d"))
     {

     
     rb.AddForce(Vector2.right * sila * Time.deltaTime,ForceMode2D.Force);
         
         Debug.Log("key pressed");
     }
     if (Input.GetKeyUp("d"))
     {
         rb.velocity = new Vector2Int(0, 0);
         
         Debug.Log("key released");
     }
 }

}`