To demonstrate a genuine relationship, applicants must provide strong and consistent evidence. Married couples submit a legal marriage certificate, while common-law partners must prove at least 12 months of continuous cohabitation. Supporting documents may include joint bank statements, shared leases, property ownership, or utility bills in both names. Couples should also provide evidence of communication and time spent together, such as photographs, travel records, phone logs, and messages. Letters from friends or family attesting to the relationship can also strengthen the application. The goal is to show that the relationship is ongoing, committed, and not solely for immigration purposes.