The phrase "hamper negotiations" is correct and usable in written English.
It can be used when discussing factors or actions that obstruct or hinder the negotiation process.
Example: "The lack of trust between the parties involved may hamper negotiations and lead to a stalemate."
Alternatives: "impede discussions" or "obstruct talks."
It could also hamper negotiations by playing into Iranian fears that America's true intention is to promote regime change.
"The time and place were well chosen to hamper negotiations between Media-Most and foreign investors," Mr. Astakhov said, in comments carried on television.
The standoff could significantly hamper negotiations because union officials have indicated they will not make any more financial concessions without receiving fully audited financial statements, data it has been seeking for nearly two years.
But competition is hampering negotiations.
The special panel has been hamstrung by the same partisan divisions that have hampered negotiations on spending for the last 10 months.
The upshot is that domestic politics here has severely hampered negotiations over the future Iraqi-American relationship.
And to prove the rebels' sincerity to a doubtful public, progress must be made on one or more issues that have hampered negotiations.
The delay in those appointments has hampered negotiations over a possible continued role for the American military in Iraq beyond its scheduled exit at the end of the year.
Responsibility for calling off the ceasefire lies firmly with ETA, but Mr Rajoy's refusal to back the peace process, and his insistence on ETA's unconditional surrender, hampered negotiations.ETA may be re-energised and is certainly rearmed (it stole 350 pistols from a French arms depot last October).
The prime minister has few options but to continue with his previous tactics: principally, lobbying the United States Congress to pass new legislation designed to hamper the negotiations, and giving interviews to the American media warning of the framework's shortcomings.
But even Mr. Rasmussen agreed that some major hurdles had hampered the negotiations.
