Answer:
The adverb we can form from "careful" is "carefully".
Step-by-step explanation:
Adverbs are words that modify a verb, an adjective, or another adverb. They help convey information such as time, place, manner, or intensity concerning an action or a quality. Many adverbs in English end with -y, -ly or -ily. For example: rapidly, daily, quickly, slowly, coldly, readily.
In the sentence below, we use the adverb "carefully" to indicate how (manner) the child is playing with the toy:
- She bathed and dressed the doll carefully, as if it were a real baby.