Question

what is this prefix
english grammar for what is prefix useful

Answer 1

Answer:

prefix is added before a word and so a word and meaning is added

EG: responsible ( add prefix "ir" before the word ) it becomes irresponsible

Responsible (means- )you are perfect in doing your duty

Irresponsible (means-) you are not perfect in. doing your duty

Explanation:

Here after adding ir( prefix) before the word responsible a new word and meaning is formed