Experimentos

The Uses of One
As a determiner, the word one is sometimes used before a proper noun to designate, particularly, this person: "He delivered the package to one Ronald Pepin of Colchester." The article "a" will also function in that position for the same purpose.
Sometimes we use the word one as an adjective, as in "I'll have just one scoop of ice-cream," and we seldom have trouble with thatusage. But we also use one as a pronoun, and this is where one becomes surprisingly complex.
Sometimes the pronoun one functions as a numerical expression:
* Those are lovely scarves. I think I'll buy one.
* One is hardly enough.
* One is purple, the other green.
* The three brothers get along quite well; in fact they adore one another.
* One of the senators will lead the group tothe front of the capitol.
* The yellow car is fast, but I think the blue one will win.
As a pronoun, one can also function in an impersonal, objective manner, standing for the writer or for all people who are like the writer or for the average person or for all people who belong to a class. In the United States, one sometimes has a literary or highfalutin feel to it; the more it is used, themore pretentious it feels. In British English, the use of the impersonal or genericone is more commonplace and has no such stigma. In the U.S., one is often replaced by you.
* One would think the airlines would have to close down.
* One would [You'd] think the inner dome of heaven had fallen.
* The young comedian was awful; one felt embarrased for him.
* If one fails,then one must try harder next time.
When the pronoun one is used in the numerical sense, a different pronoun can be used in a subsequent reference.
* We watched as one [of the ospreys] dried its feathers in the sun.
* One [driver] pulled her car over to the side.
However, it is generally regarded as a bad idea to mix the impersonal or generic pronoun one with another pronoun, especially in the samesentence, as in "If one fails, then he/you must simply try harder."
One's Reflexive and Possessive Forms
In the United States, the possessive and reflexive forms of one — one's and oneself — are often replaced by other pronoun forms. In British English, they are commonplace:
* One must be conscientious about one's dental hygiene.
In the U.S. that one's is apt to be replaced by a third-person"his" or (more informally) a second-person "your":
* One must learn from one's [or his] mistakes.
* One must be conscientious about one's [or his] dental hygiene.
* One must be conscientious about your dental hygiene.
In formal writing, the use of your in that last sentence — in either American or British English — would be regarded as too casual or even sub-standard. On the otherhand, the problem with using "his" is obvious: it runs counter to the tendency to remove gender bias from one's language as much as possible. Thus, even in American English, this mixture of "one" with "he/his/him" is slowly disappearing.*
Oneself is used in formal writing and speech as the proper reflexive form of one:
* If one slipped on this icy walk, one could hurt oneself badly.
Noticethere is usually no apostrophe used in the spelling of oneself. The construction one's self is used to refer to the concept of self (in psychology, for instance): "One's self, according to Freud, is defined by the interactions of the id, the ego, and the super-ego."
The Plural of One
As a singular numerical pronoun, we don't have trouble with one: "Those donuts look delicious; I think I'll pickthis one." But what if I want two donuts? It is possible, sometimes, to pluralize one:
* I really like the chocolate ones.
* The ones with chocolate frosting have cream fillings.
* Are these the ones you want?
* Do you want these ones?
When the word ones is preceded by a plural determiner (like these), we usually drop the ones and the determiner turns into a demonstrative pronoun:...