what is costs plural. Share with your friends Share 0 Jyotsna Singh answered this Significantly compounding the effects of drug and alcohol abuse, which already cost business 0 View Full Answer Jai Kashyap answered this tera sar 0 Pushkar Bhure answered this costs or cost"s.write the question properly 0 Aashna Chandnani answered this In my opinion there is no plural of cost because it is not a subject . 0 Samsak answered this it is costs only. 0 Saikeerthana answered this it is costs only ther is no pular 0 Sakthi G answered this Okay. 1