im sorry but this tells me no more than i already know, was hopeing for more clarification but thanx
There are three classes that could be applicable to you:
1. Spouse - you are married
2. Common-law - you have lived together in a conjugal relationship for 12 consecutive months
3. Conjugal - you are in a "marriage like" relationship for at least one year in that you have joined your lives (and can provide significant proof) although you are not married and are not in a common-law relationship. Very difficult category and only usually approved if there is a bar from becoming one of the other two categories. You can't get married or you can't live together for one year.
Leon gave you the link to the all of the forms that must be completed for ANY of the above categories.
There is no category for fiances or boyfriends/girlfriends as they are not eligible for sponsorship under the family class if they don't meet the above requirements.
Applying for a work permit is a completely different thing. You may be eligible for the IEC. Review the website for the Canadian High Commission in London to see if you meet the requirements for a working holiday permit. http://www.canadainternational.gc.ca/united_kingdom-royaume_uni/experience_canada_experience/index.aspx?lang=eng&menu_id=7
Otherwise, you need a job offer from a Canadian company who has obtained a positive Labour Market Opinion from Service Canada giving them permission to hire foreign workers.