Question

we lived in our ancestral house.use the noun form of ancestral

Answer 1

we live in a house which belonged to our ancestors.

Answer 2

The noun form of 'ancestral' is 'ancestor'.

Hence, the noun form of 'ancestral' can be used as follows.

'We lived in our ancestors' house.'

OR 'We lived in the house that belonged to our ancestors.'

OR 'We lived in the house of our ancestors.'

OR 'It was in our ancestors' house that we lived in.'

A noun is a type of word that works to name a set of things or some specific thing like objects, actions, states of existence, living creatures, places, qualities, or even an idea.

A noun can be a part of an open and large speech whose other members may be there as the major word in the subject that is there in a clause, the object of a preposition or the object of a verb.