We must constantly endeavor if we are to succeed.
Endeavor: try hard to do or achieve something.
I think you mean endeavor. I will endeavor to explain. That is a bold endeavor.
He said that he would attempt to make a better grade.
We will try very hard to succeed at this task. (We will endeavor to succeed at this task.)
I shall endeavor to create this sentence for you.
I can give you a sentence using the word galaxy.
I endeavor to do better in the future
The girl will endeavor to keep up her grades
Can you give me a sentence with the word betwitched?
It depends on the sentence. You can use the first one in the sentence "he will embark on his new endeavor."
The King wished his knight the best in his endeavor.
good luck in your future endeavor
Risky is an adjective. An example sentence is "He was planning a risky endeavor."