The phrase "take a decisive step" is grammatically correct and can be used in written English.
It means to take a bold or firm action in a particular situation. It is often used to indicate a necessary and significant action that needs to be taken in order to move forward or resolve a problem. Example: After much deliberation, the company finally decided to take a decisive step and invest in new technology to improve their operations.
So it was perhaps no surprise that neither team could take a decisive step towards Wembley.
"I ask you to seize the opportunity and take a decisive step to help Ukraine return to the path of peaceful development.
Martin O'Neill has told his Republic of Ireland players not to fear the world champions, Germany, as they attempt to take a decisive step towards Euro 2016 qualification.
I am pleased that a key group of research funders, driven by a collective sense of duty to care for the good functioning of the scientific system, has committed to take a decisive step to change the situation.
Officials said European countries might take a decisive step to sanction Syria's oil and gas industry this month, which would cripple one of Syria's few remaining sources of revenue as its economy reels under the strain of the uprising.
Some EU countries want Mr Tadic to take a "decisive" step on the Kosovo question perhaps by expediting the passage of Kosovars and their exports through Serbia before starting membership talks.Balkan countries struggle with many handicaps.
The proposal to "renationalize" decisions on GM crops, stalled for years, took a decisive step forward on 3 December, when negotiators representing the European Parliament and national governments agreed on a joint version of the bill.
The Marlins took a decisive step toward victory with a four-run third inning.
Mr. Djukanovic has moved gingerly toward declaring Montenegro independent, but not taken a decisive step.
The Greek and Turkish governments took a decisive step in February 1959, when they reached an agreement in Zürich.
It also takes a decisive step in changing how insurance companies deal with the costs of health care.
