It is ungrammatical to use 'has' in questions that begin with 'do' or 'does' 'has been created' implies the event occurred very recently. In these types of questions the verb 'do' is conjugated based on whether the noun is first, second or third person (eg do i, do you or , does he)
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The 'have' part of the question is not conjugated and appears as the bare.
All sentences seem to be gramatically correct
There may be differences in what they convey and in what circumstances each one would be used The contest for this question is missing, so it's hard to tell which one is the best Have not been started yet, using persent perfect in passive voice, is useful when you emphasize the present state of things connected to the past (the courses were. Difference between has to be, was to be, had to be, and should be ask question asked 10 years, 8 months ago modified 7 years, 9 months ago
Could you please tell me the difference between has vs has been 1) the idea has deleted vs. 2) the idea has been deleted what is the difference between these two? The question asked covers more ground than just have or has

I think op's example is just one example and the question asked is in order to know if who agrees with the verb when who is subject of this verb.
I have a question about where to use is and has Tea is come or tea has come lunch is ready or lunch has ready he is come back or he has come back she is assigned for work or. I have read a similar question here but that one talks about the usage of has/have with reference to anyone Here, i wish to ask a question of the form
Does anyone has/have a black pen Of your four examples, only he had completed his work Another possible from would be He has completed his work

This second form describes the current state of things
The work is now complete, although it was finished in the past Yet another possible form would be his work is complete However, this doesn't say whether he completed it or. She doesn't has a book
She doesn't have a book Why is the first sentence wrong We use 'has' with singular, and 'she' is singular. 'was created' implies that it was created some time in the past but exactly when is unimportant


