Here are some examples of how you can use it in a sentence:
* "ހިތުން ޝުކުރިއްޔާ" (hiththunn shukuriyya) - Thank you sincerely.
* "ހިތުން އެދޭ" (hiththunn edhey) - Sincerely hope.
* "ހިތުން އަދަބުވެރިކަމާއެކު" (hiththunn adhabverikamaaekku) - Sincerely and respectfully.
You can also use "ތެދުން" (thedhunn) which translates to "truly" or "honestly," which can also convey a similar meaning to "sincerely."
"ތެދުން ހިތުން" (thedhunn hiththunn) is another option which emphasizes both truthfulness and sincerity.