for loop – I want to do a FOR to update a Text using PySimpleGUI (Python)

I want to do a FOR to update a Text using PySimpleGUI (Python) but it just updates the text to the last word of the array
This is my code:

import PySimpleGUI as sg

sg.theme('dark grey 9')

layout = (
(sg.Input(key='paragrafo')),
(sg.Text(size=(0,1), key='text', font=('Verdana', 20), visible=False)),
(sg.Button('Start', size=(39,1), key='start'))
)

window = sg.Window('Fast reader', layout)

while True:
    event, values = window.read()
    if event == sg.WINDOW_CLOSED:
        break
    paragraf = values('paragrafo')
    paragrafo = paragraf.split()
    window('text').update(visible=True)
    window('start').update(visible=False)
    window('paragrafo').update(visible=False)
    for i in range(0, len(paragrafo)):
        sleep(0.08)
        window('text').update(paragrafo(i))

window.close()