Looking on the internet deeply has found these results:

Do ask is the most popular phrase on the web.

Ask again 1544,000 results on the web	Do ask 11,060,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I will ask again, but first a caution. I ask again, what gold? Right! I'll ask again! Okay, I'll ask again. Your honor, I ask again the relevance here. I ask again: going somewhere? And Lord, I ask again that you hear our prayers, and if it be your will... So I ask again about Naples.	I've no right to ask you, I know I haven't, but I do ask you. I... I do ask myself whether I've been a total failure. Yes, I do ask you to forgive me. ...I do ask you and every American who loves this country... I really do ask myself what else has to befall the country to raise the Council's awareness of its responsibilities in this context once more. But I do ask that you respect them. Well, I really do ask myself whether the European institutions have become unable to act. Wait... that means if I do ask you out, then I'll lose the bet.

Ask again

1544,000 results on the web

Do ask

11,060,000 results on the web

More popular!

I've no right to ask you, I know I haven't, but I do ask you.
I... I do ask myself whether I've been a total failure.
Yes, I do ask you to forgive me.
...I do ask you and every American who loves this country...
I really do ask myself what else has to befall the country to raise the Council's awareness of its responsibilities in this context once more.
But I do ask that you respect them.
Well, I really do ask myself whether the European institutions have become unable to act.
Wait... that means if I do ask you out, then I'll lose the bet.