"whatever means necessary" is a correct and usable phrase in written English.
You can use it to emphasize the idea that you are willing to do whatever it takes to achieve an objective or goal. For example, "I'm determined to make this project successful, and I will do whatever means necessary to make it happen."
"They may not care about motive, whatever means necessary," Mr. Wayne said.
On March 6, George C. Wallace, Alabama's segregationist governor, forbade the march and ordered state troopers to "take whatever means necessary" to prevent it.
Critics have accused the city of using whatever means necessary to ensure that its downtown remained calm and attractive for the trade ministers.
He was arrested and tried, but argued that he had the right to use whatever means necessary to protect himself and his family.
Successive presidents gave the federal police, especially an elite corps known as the Federal Security Directorate, license to wipe out the subversives using whatever means necessary.
"He will have chosen these locations for that reason and will go to whatever means necessary to exploit and even harm his victims".
An inmate uses whatever means necessary to convince a parole officer to grant his release.
Yet some in Congress are determined to use whatever means necessary to advance dangerous provisions that would threaten the health of millions of Americans.
Their rights are likely to be subsumed to the needs of the group thereby sanctioning the use of whatever means necessary to control behaviour which threatens this cohesion.
Due to the perilous state of the population, it is crucial that we implement whatever means necessary to increase the number of genetically diverse razorback sucker in the wild.
For the Ba'athists and al-Qaida militants who largely made up the Iraqi "resistance", "whatever means necessary" included suicide attacks on Iraqi and British soldiers.
