To do business is to trade with somebody — to buy from them, sell to them, and expect to do it again next year.
It takes with: they do business with three suppliers in Turin. No article, and this is one of the places English insists on do where a learner reaches for make. Make business is not English; make money is. Open for business is what the sign says, business as usual is the reassurance after a crisis, and a nice little business is what you call one that quietly works.
1phrasedo businessTo trade with somebody.
“They do business with three suppliers in Turin.”
do business is a commercial dealing.
Practised in Common Word Pairs