I have been learning the how clause use and trying to understand it in the extent meaning in the following examples:
**extent ** [noun] how large, important, serious, etc. something is
It is difficult to assess the full extent of the damage.
(It is difficult to assess fully how large the damage is)
She was exaggerating the true extent of the problem.
(She was exaggerating truly (not truely) how important/serious the problem is)
I was amazed at the extent of his knowledge.
(I was amazed at how great his knowledge is)
As what you can see in the brackets are my understanding of the meaning of extent in the examples. For the adjectives, full and true, that I converted them into the adverbs, fully and truly.
Are the bracket sentences correct?