Could someone answer this quirky 'Grammar' thing for me?
Hi, I recently happened upon quite confusing grammar quiestion.
Here is thing.
The understanding of the process of mathematical creation and of the age-old grappling with mathematical problems ( is / are ) completely lost.
In my perspective, the answer should be 'are' since there are two understanding ; 1. the understanding of the process of mathematical creation ; 2. the understanding of the age-old grappling with mathematical problmes.
But, ironically, there also can be only one answer as there is only one understaning; the understanding of the process( of matematical creationg and of the age-old grappling with mathematical problems. )
What interpretaion should be right, and what's the asnwer?
In the same context,
The girl in blue jeans and with a red hat ( is / are ) korean.
And what's the answer for this question if I want to describe two girls; one with blue jeans; the other with a red hat. Should I write in different way?