Я не знаю, когда закончу работу, но

Я не знаю, когда закончу работу, но я обещаю прийти, как только закончу.

Результаты (английский) 1:

I don't know where I work, but I promise to come as soon as the finish.

Результаты (английский) 2:

I do not know when I finish work, but I promise to come as soon as I finish.

Результаты (английский) 3:

I do not know, when finished work, but I promise to come, as soon as finished.