Chapter 1
1. {lo zdāni cu kāndi gi'e grųsi kei du'i tu'a ro drāta};
Why the {tu'a}? To me, it is quite normal for dunli1 and dunli2 to be
simple objects.
This topic is one of my specialties. :D
I use BAI in such a way that whenever their source predicate has a sumti place that could integrate the main bridi, then they will do so (I explained the same thing in the {to'e ri'a} thread).
{du'i} is one such BAI. I define it thus:
broda du'i X ~= X dunli lo su'u broda
So, I would say, for example:
(1) do bajra du'i lo nu lo tirxu cu bajra
"Your run is like that of a tiger."
It is seldom the case that a concrete object is {dunli} to an abstraction, although it is not impossible. But usually, replacing the X in the above equation with a concrete object will create "non-sense". But we can use {tu'a X} when we don't want to specify the full abstraction, or when it's obvious.
(2) do bajra du'i tu'a lo tirxu
"You run like a tiger [runs]"
The expansion of this {tu'a X} is almost always {lo nu X no'a}, which correspsonds to the English in []-brackets in (2).