The phrase 'relentlessly fighting' is correct and usable in written English.
You could use it when referring to someone who is dedicated to achieving a goal or outcome no matter the difficulties or obstacles that arise. For example, "Jill was determined to succeed, and she was relentlessly fighting to reach her goal."
In 2009, undocumented queer leaders from DreamActivist began working on Education Not Deportation (END) campaigns, effectively and relentlessly fighting individual deportation cases.
Currently residing in the US, Jewher is relentlessly fighting for her father's release and appeared particularly moved by Dawson's portrait of her dad.
Vanity Fair reports that Donham didn't "officially repent" for her actions by attempting to join racial justice groups for example but she did admit to feeling "tender sorrow" for Till's mother, Mamie Till-Mobley, who died in 2003 and had committed her life to relentlessly fighting for civil rights. .
The companies have been fighting relentlessly for market share in mainland China for two years, spending tens of millions of dollars every month to attract riders and drivers.
The sometimes dense fog of political war between the two coalition parties tends to lift most at party conference time as the two leaderships try to reveal their battle scars to their respective sceptical memberships, if only to reassure them that behind Whitehall's closed doors they are fighting relentlessly for their party cause.
It's no secret, Apple and Qualcomm have been fighting relentlessly for a few months over royalty payments.
Who are these caped crusaders, fighting relentlessly on behalf of an "innocent" client?
Sukhdev is fighting on relentlessly.
For Grant, the matter was simple: war meant fighting the enemy relentlessly.
With the clock on his passion ticking away, Mr. Stewart has been fighting his birds relentlessly.
Finn the human and Jake the relentlessly chill magic dog have been fighting monsters and figuring out their emotional biz for eight years now, but on Monday the televised portion of their adventures come to an end.
