If unsure about ie or ei, in the event the seem on the vowel is as in brief /i:/, we spell it ie; but once the letter c, we spell it ei: … vacuum - Persons usually misspell this word by utilizing two c's and 1 "u," or two of https://spellingerrorbydearsir59260.p2blogs.com/27519586/spelling-mistake-dharmendra-sir-no-further-a-mystery