Complex sentence: Tina's mum Sylvie moves in with them so that Tina can care for her, as she has dementia.However in 2016 Sonia takes a job in Kettering and leaves Walford then after a week alone Tina and Sylvie move in with Shirley at 23B.
Split into simpler sentences: Tina's mum Sylvie moves in with them so that Tina can care for her, as she has dementia. However, in 2016 Sonia takes a job in Kettering and leaves Walford then after a week alone Tina and Sylvie move in with Shirley at 23B.