The solar eclipse will begin at 2:30 pm.
No, You cannot use but to start a sentence.
I will now begin the demonstration. Let's begin at the beginning.
The ceremony is about to begin.
You always want to begin a new sentence with capitalization
Use a semi-colon instead
Yes. There is no word or phrase in English that cannot begin or end a sentence.
The old sandwich in the refrigerator was beginning to smell.
I would like to begin with a startling revelation.He seems to be unable to begin with the truth, much less end with it.
When you release the handbrake, the vehicle may begin to lurch.
The violist sat poised and ready for her part to begin.
Technological advances begin with ideas from ordinary people.
the annual food fight will begin tomorrow