What is a Adverb for sang?

There isn't a single adverb specifically for "sang". However, you can use adverbs to describe how someone sang. Here are some examples:

Describing the way someone sang:

* Beautifully: She sang beautifully.

* Loudly: He sang loudly.

* Softly: The choir sang softly.

* Clearly: The child sang clearly.

* Sadly: He sang sadly about his lost love.

* Joyfully: They sang joyfully during the celebration.

Describing the time someone sang:

* Previously: He had previously sung in a choir.

* Recently: She recently sang at a concert.

* Often: They often sing together.

* Suddenly: He suddenly started singing.

The best adverb to use will depend on the context of your sentence and what you want to emphasize.