Jetée

Both of the featured phrases, are, indeed, words.

There are some minute differences between the two, and their usages in different English-speaking countries (mainly the UK, Canadia, and Hong Kong, among a few others), but the two (maybe four) phrases are essentially interchangeable and still correct in grammar terms, though there are preferences for some.

sometime
courtesy of the The American Heritage® Dictionary of the English Language, Fourth Edition

adv.

1. At an indefinite or unstated time: I'll meet you sometime this afternoon.
2. At an indefinite time in the future: Let's get together sometime.
3. Obsolete. Sometimes.
4. Archaic. Formerly.

adj.

1. Having been at some prior time; former: a sometime secretary.
2. Usage Problem. Occasional.

USAGE NOTE Sometime as an adjective has been employed to mean "former" since the 15th century. Since the 1930s, people have used it to mean "occasional": the team's sometime star and sometime problem child. This latter use, however, is unacceptable to a majority of the Usage Panel. See Usage Notes at someday.

---------- Post added at 08:00 PM ---------- Previous post was at 07:56 PM ----------

--------------------

Now, as to my inquiry:
Is there a key participle, article or preposition I should be aware of that more easily helps one identify when and where to properly use the word 'whom'?

__________________
As human beings, our greatness lies not so much in being able to remake the world (that is the myth of the Atomic Age) as in being able to remake ourselves.

—Mohandas K. Gandhi