Correct spelling, explanation: when you add the -ing form to the verb -be, you do not make any changes, thus, the correct form is being. As the verb -be in most cases is a stative verb, the form with -ing is not so common and therefore some users of English are unsure how to spell it.

Definition of being:
1. noun – existence, it can refer to a state, person, or a thing,
A lot of innocent human beings were the victims of the war.
2. verb – gerund form of the verb -to be,
She hates being the center of attention as she’s rather shy.

Common expressions with being:
Some well-known expressions with the word being include well-being, human being, and the Supreme Being. The word is also a part of many idiomatic expressions, for example: for the time being, with every fiber of your being, all things being equal.

Incorrect spelling, explanation: quite a common mistake among both learners and native users of English is to switch the letter -e with the letter -i when adding the -ing form to the verb -to be. The mistake (spelling bieng) probably comes from the pronunciation of the word or simply from the absence of mind. The form, however, is incorrect so pay attention to spell it correctly next time you need to use the word.

Incorrect spelling

Incorrect spelling