Double prepositions are composed of two prepositions (joined together) to form one preposition. Usually, a prefix is joined with a word/preposition to form the double preposition. The list includes; without, amid, outside, inside, within, throughout, into, onto etc…
Examples of double prepositions in context:
The truth lies within.
Where are you bob? I am Inside.
Amid the chaos, we found a solution.
James left school without a diploma.
Upon arriving we decided to check for a spot to sit down.
Without my friends, I would be nowhere.