"further negotiate" is a correct and usable phrase in written English.
It is typically used to indicate that additional discussions or bargaining are needed in order to come to a final agreement or decision. Example: "After several rounds of negotiations, we were still unable to reach a deal and had to further negotiate the terms of the contract."
The players union must notify the commissioner's office by Dec. 10 if it wants to further negotiate replay in 2009 and beyond.
There is a diffuse anger at Mr. Sarkozy, at his style and apparent arrogance and unwillingness to give way — or to further negotiate.
Househunters are also assisted by one of the Homebuyer Centre's agents, who will use his or her knowledge of the local area and property market to further negotiate down the price.
Ferguson officials had hoped to further negotiate the deal with the DOJ, but knew a lawsuit was a possibility.
"When you make a comment regarding, 'I think we should try something further or try to further negotiate with the employee group as far as fire is concerned,' there may not be that option," Vasin said.
It was ceded to Russia in 1721 with the Treaty of Nystad, but it was further negotiated as part of independent Finland in 1918.
U.S. flexibility to set a minimum of conditions that can be further negotiated once aid delivery begins could become a model for donors in Europe and Japan.
The text, released in simple bullet points to be further negotiated in the days ahead, was a testament to how far Merkel and the German government have come from the "Willkommenskultur" ("welcoming culture") she preached in 2015.
Significant budget savings can eventually be reaped from further negotiated nuclear arms reductions with Russia, provided Congressional Republicans do not insist on squandering the money on new nuclear weapons and fantasy-based missile defense shields.
An English at Work programme about further negotiating a deal.
Further negotiating sessions took place in October and November, but no agreement was reached.
