the sun shone brightly
The word brightly is already an adverb.An example sentence with this word is: "the moon shone brightly that night".
A sentence with the word firmament is The stars in the firmament shine brightly.
"The sun shines most brightly on a clear summer's day." Need another one?
The ember glowed brightly in the fading firelight.
In this sentence, "twinkling" is used as an adjective, and "brightly" is an adverb. These are very important considerations in the field of Astronomy.
The factory just went up in flames. The flames in the barbecue pit are too high.
The sun shone brightly in the cloudless sky, casting a warm glow over the entire landscape.
the sun was shining brightly on the morning of the big day.
The unicorn frolicked in the meadow, while the sun shone brightly!
I would like to know where the bathroom is located. This bathroom is very brightly lit.
The sun shone so bright people got burned.
The adjective bright has the adverb form brightly. The sun is bright. The sun shines brightly.