There are a number of different family types.
A Nuclear family:
This is when the parents and children live together in the home. Contact with other family members is limited, and practical help from them isn't easily available.
An Extended family:
This is when parents and the children live with, or near, relatives such as grandparents, aunties, uncles and cousins. There is practical help with child care and emotional support.
A Step family:
This is formed when one or both people in a couple, with children from a previous relationship, re-marry or co-habit. New relationships can be difficult to establish.
A Single-Parent family:
They mostly, but not always, comprise of a mother and her children. This type of family can be the redult of: