The bus stopped with a sudden jolt.
Yes, "all of a sudden" usually requires a comma if it is used at the beginning of a sentence. For example: "All of a sudden, the lights went out."
All of a sudden I found that I had written a sentence in reply to a question.
I was startled by a sudden noise.
all of a sudden.......
It is called an exclamatory sentence.
All of a sudden a wild badger attacked me.
The complete subject of the sentence is "a sudden storm." In this sentence, "a sudden storm" is the noun phrase that tells us what the sentence is about. It includes the article "a" and the adjective "sudden" along with the noun "storm."
"A sudden flash of light in the night sky." That isn't a sentence at all, since it has no predicate (verb).
The sentence should begin with the definite article 'the.
I was unprepared for his sudden outburst of exasperation.
An exclamatory sentence is a sentence that demonstrates a sharp or sudden utterance or a vehement expression of protest or complaint.
An exclamatory sentence is a sentence that demonstrates a sharp or sudden utterance or a vehement expression of protest or complaint.