Contentious elements of the government's industrial relations overhaul are unlikely to be split off in order for the laws to be passed quickly.
Workplace Relations Minister Tony Burke said he did not want to delay passage of the laws, saying people had been waiting too long for a rise in wages.
While Senate crossbenchers have called for more time to examine the laws, Mr Burke said splitting the bill was unlikely.
"It's certainly not my starting point - my starting point is the bill gets wages moving," he told the ABC on Tuesday.
"My preference for the Senate crossbenchers, rather than just buying more time, is to have a constructive conversation, which has started."
Concerns have been raised about changes to the wages umpire, with fears greater access to flexible work arrangements for employees would lead to more strikes.
The laws would also introduce multi-employer enterprise bargaining arrangements.
While multi-employer bargaining has been labelled as contentious, Mr Burke said the measures would get wages moving.
"Getting wages moving is contentious in Australia, that is why for 10 years they haven't and the impact of that is real," he said.
"For the senators that are quite reasonably saying they want to make sure they can get across the detail I want to provide whatever assistance we can, and helping them get across the detail."
Mr Burke previously flagged amendments to the bill would be introduced.
Treasurer Jim Chalmers said the increased powers for the Fair Work Commission would reduce conflict between employers and workers.
"I don't think anyone could say that the enterprise bargaining system that we've had is delivering the kind of outcomes we want," he told a Sydney business forum on Tuesday.
"I genuinely believe that the way that this has been designed is not about more conflict. It's about more agreement."
Dr Chalmers said the commission would ensure fewer strikes by playing a greater role in mediating disputes between employees and employers.
"I see that as a hedge against what businesses have raised as a concern about more industrial action," he said.
The treasurer said the government had struck the right balance with the legislation.
Australian Chamber of Commerce and Industry chief executive Andrew McKellar said the group was concerned multi-employer bargaining could bind small businesses into agreements they can't afford.
"While there are exemptions for very small businesses, we don't think that goes far enough," he told Sky News.
Mr McKellar echoed criticisms by key independent crossbenchers about the government trying to rush through the legislation before Christmas.
