Yes, especially if you utilize a comma right after the "then", like this: I met this really cute girl at the dance. Then, we went out for coffee.
no
no
Using a gerund at the beginning of a sentence is perfectly acceptable.
yes
yes...
Deliberately.
You can do whatever you want Ellipsis is a noun so you can use it at the beginning of a sentence. A ellipsis is often indicated by a set of dots.
In the beginning, God created the Heavens and the Earth.
It's actually notwithstanding, (and not notwothstanding). Anyway, yes, you can use it at the beginning of a sentence.
Yes! :d
No you can not because you are making a list and so what the topic is who use what happened the most and trun it into a sentence.
Usually at the beginning, for example: Contrary to popular belief, the word contrary is used at the beginning of the sentence in which it is used.