Looking on the internet deeply has found these results:

Is it confirmed is the most popular phrase on the web.

Has is confirmed 184 results on the web	Is it confirmed 1568,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Which is greater It is confirmed, that it can be used as an antibody. having it confirmed or having to wonder? It is confirmed now the Duvaliers are fleeing. Yes, it is actually confirmed. Here it is also confirmed that the USA put pressure on Sweden. Is it confirmed that it's here? I sometimes hear our neighbouring countries asking why we are so bothered about the acquis, when all that matters to them is having it confirmed that they are ready for accession.

Has is confirmed

184 results on the web

Is it confirmed

1568,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Which is greater
It is confirmed, that it can be used as an antibody.
having it confirmed or having to wonder?
It is confirmed now the Duvaliers are fleeing.
Yes, it is actually confirmed.
Here it is also confirmed that the USA put pressure on Sweden.
Is it confirmed that it's here?
I sometimes hear our neighbouring countries asking why we are so bothered about the acquis, when all that matters to them is having it confirmed that they are ready for accession.