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walitys said:
But if after staying in Canada for 2 you leave
and spend 2y11mo. abroad,
you will still have the right to return to Canada.

Then you will need to live in Canada at least 2 (out of 5) years again
in order to retain your PR right.

Its a 5 year rolling period so your strategy would work if it was the first 5 year post PR landing...thereafter it gets tricky.