Taking this to be the sentence (it's slightly edited):
"The old car caused trouble constantly, but she never complained."
the adverbs are "constantly" and "never." Both state when the action of the verbs ("caused," "complained") took place.
He is so foolish he is constantly assisted by his friends out of trouble. That sentence may or may not work as you requested
Constantly has issues with it.
They don't know how to ride.
if you reframe the sentence, you will get the complete subject: "trouble develops on the safari." the complete subject is "trouble."
the way you can use trouble in a sentence is by telling someone that you are in trouble or you can just put what your parent say when your in trouble, if you want to write or type a hole paragraph about what you did wrong then you have a sentence using troubleExample: My cousin always gets in trouble with his parents for his grades.
You're in big trouble!
The boys caused much trouble in the house.
Example sentence - He knew there would be trouble when he caught a glimpse of the man hiding in the shadows.
She going to get herself in trouble
He is very precocious, always in trouble.
Because of your lasciviousness you are in trouble
Example sentence - It is easy to ask questions to avoid getting into trouble.