SuStel:

HIq vItlhutlh jIH
I drink the liquor.
In case anyone isn't sure who does the drinking, I make it clear that it's me.

I'm probably confused, since I'm a beginner and I hope I'm not annoying you with my questions. If so, I'm sorry, maybe that's not the right forum for me. But in the thread I mention above, you told me there is no semantic difference between *yaS vIlegh* and *yaS vIlegh jIH*, so I cannot understand your new example properly. Regarding what you told me in September I would have expected: *HIq vItlhutlh jIH'e'*. Adding only *jIH* without *-'e'* sounds for me similar to that use of Spanish I spoke about in that thread (and Lieven L. Litaer mentions here). In Duolingo we find this example: *jIqet jIH 'ach bIyIt SoH* (translated: "*I* run but *you* walk.")

A semantic difference between sentences is where the sentences mean something different. HIq vItlhutlh jIH means exactly the same thing as HIq vItlhutlh; I'm just adding the jIH to make especially sure you understood. If I had said HIq vItlhutlh jIH'e', it would have meant something slightly different: I, and not someone else, drink the liquor. There is no "and not someone else" element in HIq vItlhutlh jIH. That's the semantic difference.

Do not hold up Duolingo as an example of necessarily correct Klingon. It gets a lot of things wrong. Its translation in this case is poor, though not strictly wrong. It doesn't explain what those asterisks around the words actually MEAN.

The sentence jIqet jIH 'ach bIyIt SoH means I run but you walk. Including the pronouns does not automatically mean you're stressing them; it means you're being more clear than the minimum you need to be. It means exactly the same as jIqet 'ach bIyIt. If the sentence were jIqet jIH'e' 'ach bIyIt SoH'e', that would mean something different: I (not someone else) run, but you (not someone else) walk.

Using explicit pronouns just means you're using extra clarity. Using -'e' means you're making the noun exclusive. Being extra clear doesn't change the meaning of the sentence; using -'e' does.

-- 
SuStel
http://trimboli.name