We went swimming later in the afternoon, Jack and I
This sentence has been done something to.
It's an example of the syntactic rule of Right-Dislocation.
The sentence it's transformed from is
- Jack and I went swimming later in the afternoon.
The rule copies an emphasized Noun Phrase (which may be subject, object, or oblique) in a sentence, and repeats it, with a different intonation, for emphasis, at the end of the sentence. It's not a movement rule, but a copying rule, since the original NP remains in place as a pronoun.
There's also a rule of Left-Dislocation, which copies the NP to the beginning of the sentence.
Here's the entry from Haj Ross's list of The Top 200+ English Transformations
(p.4, categorized under "I. Emphasis; A. Pseudoclefts and Dislocations")
"6. LEFT AND RIGHT DISLOCATION:
My horse snores. ➞ My horse, he snores. (via LEFT DISLOCATION), or
My horse snores. ➞ He snores, my horse. (via RIGHT DISLOCATION)
In pseudoclefts, this rule will produce related sentences like the following:
Anne's brother left ➞ Anne's brother is the one who left ➞ Anne's brother, he's the one who left."
Some more examples of dislocated sentences:
- My Uncle Will hates the Dodgers a lot. (Base sentence)
- My Uncle Will, he hates the Dodgers a lot. (Left-Dislocation of Subject NP)
- The Dodgers, my Uncle Will hates them a lot. (" of Object NP)
- He hates the Dodgers a lot, my Uncle Will. (Right-Dislocation of Subject NP)
- My Uncle Will hates them a lot, the Dodgers. (" of Object NP)
As for why anyone would think any of these are more or less "formal" or "old-fashioned" than others, I can't really say. "Formal" and "old-fashioned" are not linguistic terms, anymore than "fad" or "fancy". Everybody has their own idea(s) about these terms.
It could be either one, depending on whether "trying" is a noun (then you use "alleged") or a gerund, which is a verb form (then you use "allegedly"). This is because adverbs can't modify nouns, and adjectives can't modify verbs. The ambiguity of structure arises because "-ing" has multiple uses in English, and here, we might be dealing with the "-ing" that derives nouns from verbs or the "-ing" that accompanies gerunds, which are verbs.
Some English speakers might not accept the adjective "alleged" here, because they could be missing a lexical noun "trying". This is a difference between inflectional endings, like the ending in the gerund (which does not change the part of speech), and the derivational ending in the noun "trying". Derivational forms are not basic to the structure of the language -- individuals may differ in whether they are acquainted with specific words in the lexicon.
What is going on is clarified if we change the example so that "trying" has a direct object, since nouns do not take direct objects:
Alice's trying ice cream had left Bob wary of any gourmet foods she might suggest.
Now, you can't use the adjective "alleged".
Best Answer
It should be until the end of time. The time here is referring to the entirety of time itself, from the Creation until the end of the world, perhaps. Time here is not countable, so you cannot use times.