Question

they live ___ the same roof

Answer 1

Hey mate here's your answer..

They live under the same roof.

Hope it Helps

Answer 2

They live under the same roof.

• The word 'under' is a preposition.
• A noun phrase that is commonly used with a function word to generate a phrase that communicates a modification or prediction is referred to as Prepositions or a word or phrase used with a noun, pronoun, or noun phrase to indicate a direction, location, or time, or to introduce an item.
• Some examples of prepositions are under, until, up, upon, within, without, outside, over, past, since, through, toward, at, by, for, from, in, of, on, to, and with, below, beneath, beside, between, close to, down, during, except, inside, instead of, into, like, near, off, on top of, onto, out of are the most prevalent prepositions.