Been is the past participle of the verb to be. It is used with the auxiliary verbs has, have, and had to form the perfect tense. For instance:
- How long has it been since you had a haircut?
- She had been studying for a test when the electric went out.
- How long have you been waiting?
Being is the present participle form of the verb to be. It is used with the auxiliary verbs is, are, was, and were to form the continuous tense. Such as:
- The dog is being groomed.
- The song is being sung.
Being is used as a verbal, which is a word that partakes of both a verb and a noun. An example would be:
- Being alone is sometimes better than being part of a crowd.
Being can also mean "creature" or "existence.