The phrase "a while to achieve" is correct and usable in written English.
It can be used when discussing the time required to reach a specific goal or outcome.
Example: "It took a while to achieve the desired results from the new marketing strategy."
Alternatives: "some time to accomplish" or "a period to attain".
It will take a while to achieve them".
It will take a while to achieve that grand vision.
"It is evident that it's going to take a while to achieve our objective," the President said on the White House lawn after returning from Camp David.
Representative Wolf's goals may be ambitious, she said, but are probably necessary -- even though it may take a while to achieve them.
And the evidence is there that the UK is achieving business-led change, but it will take a while to achieve a balance, or even 30% women on the boards of PLCs.
It took Mr. Lasseter a while to achieve something like the ending of "Toy Story 2," when Buzz the astronaut and Woody the cowboy talk like a couple of heroes from a John Ford western closing out a film; there was a surprising iconic majesty, with earned emotional attachment because of what they endured.
OWS remains for now less unliked than the tea-party movement, though one should keep in mind that it took the tea partiers a good while to achieve this sort of unpopularity.
Make sure you have fun when doing these exercises, as you don't want to be bored in something that you may have to do for a little while to achieve your goal.
If it helps, listen to a recording of the drums for a while to try to achieve that feeling or act it out just as you have seen in Doctor Who Be loud and let your eyes wander here and there, as if you are crazed.
The Dutch soprano Gre Brouwenstijn takes a while to warm up, achieving winningly spontaneous delivery of Elisabeth's lines and a moving final prayer.
However, the converse is not true; a player can have an excellent all-around performance while failing to achieve a triple-double.
