Repetition of sentences in short, hurried structures to instill a sense of fear would be an example of

Parallel Structure

Explanation:

Parallel structure (also called parallelism) is the repetition of a chosen grammatical form within a sentence. By making each compared item or idea in your sentence follow the same grammatical pattern, you create a parallel construction.

hm, switch the relative; nominative and indefinite; objective ? not too bright in the knowledge of the english.

yóu can speak tó no one, replíed the kní