The phrase "and maintained a steadfast" is correct and usable in written English.
It can be used to describe someone who has consistently upheld a strong or unwavering position or attitude over time.
Example: "Throughout the challenges, she remained focused and maintained a steadfast commitment to her goals."
Alternatives: "and upheld a firm" or "and kept a resolute".
Try gaining clarity about what that future looks like, and maintaining a steadfast belief in its possibility.
The candidates, for their part, have addressed gender to varying degrees but maintained a steadfast focus on the issues.
Mr. Gunn, wearing a loose-fitting black suit, maintained a steadfast watch, gazing upward, lost in thought, full of wonder yet a little wary.
But there was no apology from Rome, as Benedict XVI maintained a steadfast silence about the crisis in his annual Urbi et Orbi – To the City and the World – address.
The majority had essentially been weaned on the obvious political-social-cultural upheavals in academic literary critique of the later 20th century, while I, in spite of previously only an informal exposure to literary criticism, maintained a steadfast allegiance to the traditional liberal humanism of an earlier 20th century (M. Foucault and J. Derrida meet C. Brooks and L. Trilling).
George W. Bush maintained a steadfast devotion to Israel during his presidency after visiting in 1998 while serving as the governor of Texas.
"That was a really important part of my life for seven years, and I'm really grateful to CBS and everyone involved with the show for giving me the opportunity," Kim told EW. "That said, it's possible to be grateful for the opportunity and respectful of the colleagues and the people that I work with and still maintain a steadfast sense of your self-worth," he continued.
Religious individuals consider this a turn toward God, while secular individuals may think of it as a turn toward their "highest good". In all cases, they work diligently toward self-awareness and they maintain a steadfast focus on honorable goals and ethical principles – even as stressful uncertainties, risks, threats, and instability swirl about them.
But despite the odds, and thanks in part to a former teacher who maintains a steadfast interest in her, Amber gets her life on track.
