The phrase "sound forceful" is correct and usable in written English.
You can use it to describe something that has a strong effect or persuasive power. For example, "his words sounded forceful and made a lasting impression on the audience."
That song came at the end of a short run of songs mid-set alongside his main opening act, the frat-country crooner Luke Bryan, perennially in search of a good time, and one of the few country stars of the moment who make Mr. Aldean sound forceful.
Mr. Obama wanted a way to distinguish himself from Hillary Clinton — and for Mr. Obama, who has said that the reason "we can't tackle the big problems that demand solutions" is that "politics has become so bitter and partisan," joining in the attack on Senator Clinton's Social Security position must have seemed like a golden opportunity to sound forceful yet bipartisan.
Now, in this case, I can't really handle the past or future tenses, but that's OK, because that means I'll be speaking all about the present -- which will make me sound forceful and confident.
In the speech, which was broadcast and translated around the world, Mr. Obama sounded forceful, even scolding at times, as he promoted democracy in Egypt and women's rights and acknowledged that the United States had fallen short of its ideals, particularly in the Iraq war.
It sounded forceful as the players took to the field, but the competitive gap between the two sides reduced the encounter to something curious rather than gripping.
The music for Prospero's alluring aria is taken from a Vivaldi cantata, sung by Mr. Daniels with a transfixing blend of melting sound and forceful delivery.
It may not sound particularly forceful or brave of William Hague, the Foreign Secretary, to summon the Russian ambassador and to urge on him the "de-escalation of tensions in Ukraine".
Contestants tear apart and restuff their vehicles with hundreds of thousands of dollars' worth of amps, batteries and subwoofers that can produce a sound wave forceful enough to crumple your lungs.
Lambert did sound pretty forceful at the moments where he dug in.
The word strigoi will likely come up a lot in future episodes, and it does sound mighty forceful when Setrakian spits it at vamps during the decapitation process.
Instead of saying, "I think abortion should remain legal in the United States," you can say, "Abortion should remain legal in the United States," to make your argument sound more forceful.
