Grammatically, I think it can only be "correct", since "forever" can be a noun, as in: 1. It took me forever . (Cf. "It took me an hour ".) Semantically, you might say that it's not quite right; but presumably that slight

Hello Anon, 1. I haven't seen you in forever. I would take this as a jocular variant of: 2. I haven't seen you in an age . For "an age", which is already hyperbolic, the speaker substitutes "forever", which piles hyperbole

There is some variation; the Times and the Oxford University Press set film titles in italic. Some might use underlining where italics aren't available, e.g. in handwritten texts. MrP

I would opt for "delivers", Anon; here "pair" is the subject of the verb. All the best, MrP

As you know, M., "might" is conventionally regarded as a "modal verb" in such uses. However, I seem to recall a thread in the distant past, in which you suggested that it might be adverbial. You never elaborated on that suggestion; but

In a previous these ones/those ones thread, I remember, there were some strong objections to the formation; so yes, geography does seem to affect its likely reception!

In fact, you were quicker, and you found one more! (Someone must be able to find a 6th...)

In the UK, you might hear either "these ones" or "these". MrP

Hello J., Try: 1. I should ask the officer (who works in the park) when we leave 2. I should ask the officer who works in the park when we leave 3. I should ask the officer "who works in the park" when we leave 4. I should ask

I would say no; though you might say: 1. I am filled with respect for his knowledge of English literature. Best wishes, MrP