He could apply for a PR visa with you as his accompanying dependent. Then once you get the visa, he should come to Canada and 'land' with you. You can then stay, and he can go back to his country. To keep the PR status, he has to stay in Canada for 2 years out of every 5, so he could land, get his PR card, then go home for 3 years.
Thank you for the answer!
Another question, if eventually he would decide to stay in my country for more than three years but I decide to instead remain in Canada, would I loose my PR status too?