أَنَا مُؤْمِنٌ إِنْ شَاءَ اللهُ تَعَالَى
I am a believer, God willing.
The theological assessment of this expression depends on what the qualification means. Doubt about present assent differs from uncertainty about perseverance, the final outcome, or the completeness of one's faith.
The key question is the object of the qualification: does it modify the truth of current belief, the future preservation of belief, or the hoped-for divine judgment? The same words can carry different implications when used with different intentions.