At this pace, unfortunately you would never be able to request Canadian citizenship. What you are currently doing may be allowing you to extend PR if your job is temporary and with the objective to come back to Canada. But unless you spend physically 1,095 days in Canada within any period of years, you cannot be eligible to apply for citizenship. My advice if you want the passport: Request to be transferred back to Canada for a minimum of three years.
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When can I apply for Canadian citizenship as a permanent resident who is working outside the country?
I became a Canadian permanent resident about five years ago. After working for the Toronto branch of a Canadian company for one year, I was transferred to its Singapore office. I have been spending most of my time working there during the last four years with short visits back to Canada. When will I be eligible to apply for Canadian citizenship?