Answer:
at, before, on, across, upon, behind, through, between, during, until, in, below, from, by, or, after, above, under, yet, nor, into, up, out, over, of, to, toward, beside, with, without
Step-by-step explanation:
Prepositions are placed before a noun, pronouns, or noun phrase to show direction, time, place, location, spatial relationships, or to introduce an object. Therefore: like, for, except, so, the, + and are not prepositions