In this example, I am wondering why soudainement is not used (adding "ment" to the feminine version of an adjective).
I am looking at this sentence and soudain seems to be used as an adverb/is that why no "ment". If so would you please provide me with an example where soudainement might be used? Many thanks.
On regardait les lucioles, et soudain toutes ont disparu.