Looking on the internet deeply has found these results:

we have done is the most popular phrase on the web.

we have completed 1293,000 results on the web	we have done 1156,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You use the first (present perfect tense) if the house is still being built: We often think that when we have completed our study of one we know all about two, because 'two' is 'one and one.' We forget that we still have to make a study ... future projects decide what we will learn.” ~ Dr. Mohsin Tiwana ‪#‎Quote‬. we have completed you have completed they have completed. Past I completed you completed he completed we completed you completed they completed. We will have much more room for living when we have completed ... February 22 at 11:00am ·. “Projects we have completed demonstrate what we know	nationalist statements as we have done. Our annual action programmes will explain more clearly what we have done with regard to consultations. Mr Wojciechowski, that is what we have done. That is what we have done on this planet. I think we have done quite enough. That is what we have done, and our conclusion is clear. Maybe we have done this before. That does not mean that we must absolutely accept all hyper

we have completed

1293,000 results on the web

we have done

1156,000,000 results on the web

More popular!

You use the first (present perfect tense) if the house is still being built:
We often think that when we have completed our study of one we know all about two, because 'two' is 'one and one.' We forget that we still have to make a study ...
future projects decide what we will learn.” ~ Dr. Mohsin Tiwana ‪#‎Quote‬.
we have completed you have completed they have completed. Past I completed you completed he completed we completed you completed they completed.
We will have much more room for living when we have completed ...
February 22 at 11:00am ·. “Projects we have completed demonstrate what we know

nationalist statements as we have done.
Our annual action programmes will explain more clearly what we have done with regard to consultations.
Mr Wojciechowski, that is what we have done.
That is what we have done on this planet.
I think we have done quite enough.
That is what we have done, and our conclusion is clear.
Maybe we have done this before.
That does not mean that we must absolutely accept all hyper