Yes but you'd need to apply for an open work permit that needs to be sent
along the inland PR application. With the pending work permit you are on implied status and therefore you do not need to extend your stay as a visitor. If your visitors visa run out
before you apply for PR you'd need to extend it online as soon as you can. They prefer you extending your stay at least 30 days before your current one runs out. Mind you inland applications are currently taking between 14-16 months to complete. The work permit will be sent to you around 6-10 months into the process. Sometimes it take longer or less, it's difficult to say for sure. Hope this helps