Derby head coach Paul Clement says he would like to bring "one or two" new signings to the Championship club before the transfer window closes.
The Rams have been linked with a bid for Forest winger Michail Antonio.
"We are still pushing and negotiations are taking place privately, from our side anyway," the former Real Madrid coach told BBC Radio Derby.
"Definitely one and possibly two. We hope to be able to do something before the window shuts."
Derby have drawn all four of their league games this season and currently sit 16th in the early-season Championship table.
The transfer window closes at 18:00 BST on Tuesday, 1 September and Clement says he is happy to use the loan market if need-be.
"If they are not both permanents then we have that loan window to do something else," he added.
"Some of the young talent are trying to push hard to get in the first team at their respective Premier League clubs.
"It's a little bit of a waiting game. We have a list of good young talent who we think could come in and do well here, but a lot depends on how they do at their parent clubs."