~ се deteriorate; grow/become/get worse; worsen; get worse and worse; change for the worse; (за здраве) decline, decay; (за отношения между страни) suffer a (marked) set-back; работите се влошават от ден на ден things are getting worse and worse, things are going from bad to worse; болестта/положението се влошава the disease is/things are taking a turn for the worse.