You can if it’s only expiring because your passport is expiring causing you not to get your full length of time
If not then you cannot it’s a once in a life time thing!
Use this. Follow every instruction!
https://www.canada.ca/en/immigration-refugees-citizenship/services/application/application-forms-guides/guide-5553-applying-change-conditions-extend-your-stay-canada-worker-paper.html