The present perfect continuous tense.
"Has been reported" is in the present perfect tense, indicating that the reporting occurred at an unspecified time in the past and may still be relevant or ongoing. In contrast, "was reported" is in the simple past tense, suggesting that the reporting happened at a specific time in the past and is now complete. Essentially, the former emphasizes the continuing relevance, while the latter focuses on a past event.
Yes, results in a research paper should typically be written in the past tense to indicate that the findings have already been obtained and are being reported.
The future tense of "have been" is "will have been."
Yes, "reported" is a verb. It is the past tense and past participle form of the verb "report." It is used to describe the act of providing information or making a statement about something that has been observed or heard.
Past tense.
President Obama's religion has been a huge topic of conversation throughout the world. It has been reported that Obama's father and stepfather were devout Islamics.
Am is the present tense, first person singular conjugation of be. The present perfect tense of be is have/has been.
Been is the past tense of be.
This is the present perfect tense. She's been = She has been
I/you/we/they have been. He/she/it has been.
The past tense is was or were.The past participle is been.
Was is a past tense conjugation of be. The present perfect tense of be is have/has been.I/We/You/They have beenHe/She/It has been