greenbeans是可數名詞。
I ' ll have eggplants , mashed potatoes and green beans我要茄子、土豆泥和青豆。
I also have carrots , green beans and cabbage growing我也種了蘿蔔,綠豆還有花椰菜
You have a choice of vegetables , green beans , or spinach你可以選擇蔬菜:青碗豆或菠菜。 
Can i get you another spoonful of fried shrimps with green beans我再給你一調羹青豆蝦仁好嗎