well I think yes because you can start the sentence like this:
Although it was rainy i went out with my friends.
The word 'is' can begin a sentence but not be a question when it is the subject of the question. Example sentence - Is can be the subject in a sentence. But only in sentences of that type (above) or, 'Is' is a two letter word. Otherwise is cannot begin a sentence.
Yes. There is no word that cannot begin an English sentence.
It is possible to have a sentence with the word it at the beginning, as this sentence proves.
Yes, it is a fragment, it's not a sentence. It could be a sentence without the word although. "I finished." is a sentence. Using the word "although" needs a sentence that the word is referring to either in front of it or after it. Although I finished, I was not happy with the work. I'm still hungry, although I finished my lunch.
yes you can
Never
Of course you can. There is no word in English that cannot begin a sentence.
Although difficult, it's not impossible.
Yes, you can begin a sentence with the word "or" when presenting options or alternatives. For example, "Or you can choose to study abroad for a semester."
Yes, a sentence is allowed to begin with the word "with". For example: With all the pressure of high school people were becoming stressed.
lettuce begin (let us begin)
No, You cannot use but to start a sentence.