Почему в tkinter не работает column (столбец)?

 from tkinter import *
 
 
class Application(Frame):
    spis = [("воровать", "steal", "stole", "stolen"),
            ("кусать", "bite", "bit", "bitten"),
            ("делать", "do", "did", "done")]
    i = 0
    j = 0
 
    def __init__(self, master):
        super(Application, self).__init__(master)
        self.grid()
        self.create_widgets()
 
    def create_widgets(self):
        cort = self.spis[self.j]
        ruslbl = Label(text=cort[0], fg="green", font='arial 14')  # Russian word
        self.ruslbl = ruslbl
        ruslbl.grid(row=0, column=3)
 
        englbl = Label(font='arial 15')                            # English word
        self.englbl = englbl
 
        btn = Button(width=15, text="перевод", command=self.transl)
        btn.grid(column=2)
 
    def transl(self):
        self.i += 1
        cort = self.spis[self.j]
        self.ruslbl["text"] = cort[0]
        self.englbl["text"] = cort[self.i]
        self.englbl.grid(row=self.i + 1, column=2)
 
        if self.i == 3:
            self.j += 1
            self.i = 0
 
root = Tk()
root.title("Программа изучения английских слов")
root.geometry("400x150")
app = Application(root)
root.mainloop()

import tkinter as tk
 
root = tk.Tk()
root.geometry("400x150")
 
but1 = tk.Button(root, text='button 1')
but1.grid(row=0, column=0)
but2 = tk.Button(root, text='button 2')
but2.grid(row=1, column=1)
but3 = tk.Button(root, text='button 3')
but3.grid(row=2, column=2)
 
root.mainloop()

import tkinter as tk
 
root = tk.Tk()
root.geometry("400x150")
 
but1 = tk.Button(root, text='button 1')
but1.grid(row=0, column=3)
but2 = tk.Button(root, text='button 2')
but2.grid(row=1, column=3)
but3 = tk.Button(root, text='button 3')
but3.grid(row=2, column=3)
 
root.mainloop()