Looking on the internet deeply has found these results:

report back to us is the most popular phrase on the web.

report us back 18,900 results on the web	report back to us 1349,000 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.	Why don't you go ahead, and then, report back to us. Would the Commission investigate this matter thoroughly and report back to us? You need to report back to us on Boyd's plan. To become Rostovski's right hand man, as it were... report back to us on his activities. I specifically asked the members of the troika to take certain measures and to report back to us. You get a radio and report back to us directly. You will discover things about the meadow and report back to us. Unless... you continue to work for Savino, and you report back to us his criminal activity.

report us back

18,900 results on the web

report back to us

1349,000 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.

Why don't you go ahead, and then, report back to us.
Would the Commission investigate this matter thoroughly and report back to us?
You need to report back to us on Boyd's plan.
To become Rostovski's right hand man, as it were... report back to us on his activities.
I specifically asked the members of the troika to take certain measures and to report back to us.
You get a radio and report back to us directly.
You will discover things about the meadow and report back to us.
Unless... you continue to work for Savino, and you report back to us his criminal activity.