I can give you several sentences.
Suddenly, the tribal drumming stopped.
Suddenly, a sharp rap was delivered to the door.
No, but you can make a sentence with the word suddenly. Suddenly it started to rain.
The battling boas were twisting and writhing in the mud, when suddenly an alligator appeared!
I was in the living room on day, and suddenly the lamp flicked on on its own.
Ablactation occurred suddenly when her son refused to breastfeed at 15 months.
Suddenly, I found myself staring into the very maw of the huge shark.
I was suddenly taken aback by quite an unusual sight. That's an unusual design.
i was suddenly surrounded by a group of ninjas! or if you want a actually possible/boring answer i was surrounded by trees
Yes, if it is the first word of the sentence.
Suddenly she lashed out menacingly
All of a sudden, I decided to answer this random question. And, I suddenly hope that this isn't a way to cheat on homework.