dealing with conditionals

1) If the sun hadn't been setting, we wouldn't have guessed that it was about 9 p.m..
2) If I wasn't so lazy, my spoken English would have improved.
3) If Jane had known that her parents were going to arrive, she would have got ready for their visit.

The conditionals are perfect, well done! You just made some minor spelling mistakes which I have corrected. Don't forget 'to get' is a lazy way of saying 'to have'. It isn't good English and we in the UK definitely wouldn't use 'gotten' :)