There are certain special forms of law' puS constructions, which are discussed at HolQeD 13.1, p.8-10, Mar. 2004.

Because there are more chances for me to visit Qo'noS, than ever acquiring any HolQeD issues, I would like to ask:

1. At this HQ issue it says:

"To say that something is as X as something else [...], or {law'} is used with {rap} or {nIb} (the latter of which implies the two things being compared are exactly the same in some way).

And the following examples are given:

{tlhIngan woch law' tera'ngan woch rap}

The klingon is as tall as the terran

{tlhIngan woch law' tera'ngan woch nIb}

The klingon is (exactly) as tall as the terran

The question I want to ask is: Is it possible at the examples above, to have {puS} instead of {law'}, and if yes, then how does that alter the meaning ?

2. At the same HQ issue it says:

"It is also possible to use {puS} with {rap} or {nIb}, but that carries a connotation of disparagement".

What does this mean ? Can someone who knows for certain write an example ?

Your point 2 answers your point 1. tlhIngan woch puS tera'ngan woch rap means the Klingon is as tall as the Terran, and that's a bad thing.

3. At the same HQ issues it also says:

"To say that something is not as X as something else, {pIm} is used in place of the second verb in the pair". And the following example is given:

{QuchlIj vIl law' QuchwIj vIl pIm}

Your forehead is not as ridgy as my forehead

I want to ask, if in this sentence in the place of {law'} we could have {puS}. And if the answer is yes, then how does that alter the meaning ?

Same answer.

-- 
SuStel
http://trimboli.name