adverbially การใช้

Such expressions may also be used adverbially.
That wasn't a sentence to begin with, adverbially or not, but a sentence fragment.
It is also called "'adverbial "'because it qualifies the main verb like any other adverb, adverbially used adjective, adverbial prepositional phrase, adverbial clause or supplementary predicate.
All of them can also be used adverbially ( comparing the extent to which something occurs or is the case ) : " Ez pentsatu hainbeste ! "'Don't think so much ! '.
Some of the confusion about this issue results from the fact that " straight " can also be used adverbially, but generally in " figurative " senses, where as " straightly " is not used figuratively.