What are the ways to immigrate to Britain?

1. According to the principle of place of birth (also known as jus soli): born in the UK, and at the time of birth, either parent was a British citizen or has obtained the permanent residency in the UK (equivalent to the US green card). 2. According to the principle of bloodline, one parent becomes a British citizen because of qualifications other than bloodline (such as birth, adoption, registration or naturalization). For example, emma watson of sasha jackson was born in France, but her parents have British nationality, so she is a British citizen. 3. naturalization (that is, the fastest marriage) 4. Register 5. adopt