Looking on the internet deeply has found these results:

support him to do is the most popular phrase on the web.

support him do 1194,000 results on the web	support him to do 118,800,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
We expect Parliament to support him and to do so openly. His people and his army supports him. It's only possible because his subordinates support him. I say we support him, don't stand in his way. Yes, I have supported him and I do support him, because I have seen him work in favour of a strong and united Europe, and that is very important, over and above ideological positioning. That you publicly support him over the immigration issue. I congratulate him for this and support him, as I do Mr Lehne for his report on transparency. The voters would never support him.	No doubt he's gratified he has someone to support him. I'd like to be there to support him. That you publicly support him over the immigration issue. His people and his army supports him. We expect Parliament to support him and to do so openly. I will certainly support him if he chooses to do so. It's only possible because his subordinates support him. The voters would never support him.

support him do

1194,000 results on the web

support him to do

118,800,000 results on the web

More popular!

We expect Parliament to support him and to do so openly.
His people and his army supports him.
It's only possible because his subordinates support him.
I say we support him, don't stand in his way.
Yes, I have supported him and I do support him, because I have seen him work in favour of a strong and united Europe, and that is very important, over and above ideological positioning.
That you publicly support him over the immigration issue.
I congratulate him for this and support him, as I do Mr Lehne for his report on transparency.
The voters would never support him.