Your family members (‘dependants’) can apply separately if they’re eligible.
A dependant is your:
You cannot include your family members (‘dependants’) in your application.
Dependants who are not eligible
Your partner can apply to remain in the UK as the partner of a settled person if they are not eligible to apply separately and your application for settlement is successful.
They may be able to include their children in their application.
Children over 18
Your children may have to leave the UK if they’re not eligible to apply separately and are over 18.
You may be able to include your dependants in your application if you apply to settle under your visa category instead.