The car ahead of me stopped abruptly, so I had to brake quickly to avoid a crash.
He answered so abruptly, I almost missed it! The horse stopped abruptly.
Whenever I tried to talk to him about his debt, he would abruptly change the subject.
A sentence with the word abruptly is: An earthquake happened abruptly, and not one person knew what had happened.
Sam abruptly stopped swinging
The bus stoped abruptly.
Abruptly - "The song ended abruptly, without a proper ending."
He abruptly stopped after he realized that he was not supposed to be doing that.
This is a simple sentence using the words "chemical formula".
When Max entered the room, Freddie abruptly turned and walked out.
2. Abruptly and monthly.
This is a simple sentence using just one part. It is a sentence because of the complex part.
WINDBREAK!