Their is a word of possesion. Ex: That is Their ball.
NO
No, a sentence can begin with any kind of word. The first letter of a sentence is always capitalized to mark the start of the individual sentence, not because the word is a proper noun.
NEVER
Not if it is to be a proper sentence.
No, the word basketball is not a proper noun and so it does not get capitalized in a sentence unless it is the first word of that sentence.
The proper noun in the sentence "Naveen is a good boy" is the word "Naveen."
a proper noun.The word is a proper noun.
No. The word prevent is a verb, not a proper noun.
'Bisters' is not a word, so I can't use it in a proper sentence.
No, "communities" should not be capitalized unless it is the first word in a sentence or part of a proper noun.
Yes, you should capitalize the word "scurvy" if it is the first word in a sentence or if it is part of a proper noun or title.
Ending a sentence with the word "from" generally sounds awkward and is not considered proper grammar in most cases. It is better to rephrase the sentence to avoid ending with a preposition like "from."