this is unknown. i would say probrably in the trillions or so.
In the English language it is impossible to know the exact amount of words but it is estimated that 250000 words exist.
a lot.
Yes. It is a contraction of the words should and have. Many people incorrectly write this as "should of".
that word does not exist.
You are describing the short story, although I will add that stories even shorter than 500 words do exist, as well. There is no actual lower limit. Above 20,000 words, we enter the range of the novelette.
There are not a lot of words to use instead of are, except other forms of "to be"--is, was, were. Normally you have to rewrite the sentence to find a more active verb. For example, my answer could be rewritten like this: Very few words exist that can replace are. Now the verbs in the sentence are "exist" and "replace." Sometimes it's difficult to avoid are, just like I did. I could rewrite the sentence again: Now I have used the verbs "exist" and "replace" instead of the "are." As long as you use mainly active verbs, an occasion are will not hurt your writing.
No, there is no limit to how many numbers exist. In other words, there are infinitely many.
a lot.
None. Cuse words don't exist.
Words do not co-exist ! They simply exist (or not) I don't get what you mean by coexistence.
Yes. It is a contraction of the words should and have. Many people incorrectly write this as "should of".
It's not possible count them, since there is no universal definition of what a curse word is.
yes they exist
am are is was were exist have
There are several palindromes. There is thousands of palindromes. But for a list of one word palindromes, here is a link.
Nobody knows how many chocolates exist.
Gold only occurs in one form. In other words, there is only one allotrope of gold.
The word knowned does not exist. The words known and reknown definitely do exist.