That sounds like a pretty staple basic in terms of style, so you can probably wear it with a lot of things as long as the colors match. It's hard to match colors unless you see the exact shade of green but blacks/whites would work then maybe a hint of another color. Or if you could find shoes that match the sweater.

Tank top tucked into black skirt with tights, then cardigan over
Plain t-shirt with skinny jeans and shoes that match it.
Wear it over a black dress

a really pale, faded yellow shirt