Where does this definition of not begin to come from?
This entry for not begin to is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is not begin to a noun, verb, or something else?
In this entry, not begin to is tagged as 2v..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.