Double Preposition

Double Preposition:

দুটো (পদান্বয়ী অব্যয়)
preposition যুক্ত হয়ে একটি নতুন
preposition গঠণ করলে তাকে
double preposition বলে ।

When two prepositions come mutually to
create a new word, e.g., because of, from behind, within, outside of, out of,
etc. are called Double preposition.

Examples:

o   
He could not come to the meeting because of his illness.

o   
I have to do this work within today.

o   
I have to answer three questions out of all.