Participle clause is a flexible and versatile way to connect a subordinate clause with the main one providing concurrent information such as a reason or condition, parallel action or situation, or background information. * The fruit was expensive, being imported = The fruit was expensive, because/as it was imported. (reason) * The boys being chosen for the team are under 9. (this is a relative pronoun clause case) Such use of "being" (present progressive tense) adds the sense of happening at the moment. "chosen" in "the boys chosen ", only refers to the result of the action; it doesn't say when the choice was made at all. "The boys being chosen" means the boys who are NOW being chosen, which is quite different. Another example: - He is funny => He has funny disposition and usually act or speak in a funny way. - He is being funny => He may or may not be a funny person, but he is acting or speaking in a funny way right now. * Having been hunted close to extinction, the rhino is once again common in this area. The participial clause has essentially two tenses, simple ("being"), and perfect ("having been"). The simple tense indicates the same tense as the main clause, while the perfect means it is further past. So compare: 1. Being hunted close to extinction, the rhino is ... => Even though it IS close to extinction, the rhino is ... 2. Having been hunted close to extinction, the rhino is ... => Even though it WAS close to extinction, the rhino is ... In #1, the two clauses are in the same tense and therefore contradict each other (close to extinction <-> common). #2 has a past-present arrangement. "WAS once close to extinction but is now common again", making clear sense. Another example: 1. Losing my job, I have to watch what I spend => Since I lose my job, ... (unclear what it means - "lose" in the future?) 2. Having lost my job, I have to watch what I spend => Since I lost my job, ... (gives clear reason for the main clause).

The fruit was expensive, being imported. => Being imported, the fruit is expensive. Being imported => The fruit is imported. ("Being imported" is a participle acting as an adjective that modifies "fruit". "Being imported" is passive voice, progressive present tense. This phrasing simply means that the fruit was/is imported, which explains why it is expensive.) The boys being chosen for the team are under 9. (The "choosing" process is still in progress. The process is NOT complete yet. "Was/were" would indicate completion.) Having been hunted close to extinction, the rhino is once again common in this area. (Being hunted means "at this moment". It says NOTHING about the past. "Having been hunted" is present perfect tense, progressive, passive voice. Present perfect tense is required to indicate that the action of being hunted began in the past and has continued up to the present.)

I agree with Jawad About the second part: It's a matter of tenses The perfect in "Having been hunted" says that the hunting happened in the past and the result must be true in the present

Usages of Being. 1). Being+adjectives. Being so naughty in the class( means he is not naughty but he tries to be naughty). 2).being + past participle like you don't know the performer of the action(passive sentences). 3).Being in participle clauses. Instead of because, as ,since we can use being. Being late he couldn't watch the show. Since he was late, because he was late, as he was late all of them are same. I hope it will help you.