"render them unable" is grammatically correct and can be used in written English.
It is a phrase that means to make someone or something incapable of doing something. Example: The extensive damage from the storm rendered them unable to rebuild their house.
This would render them unable to travel within any of the G8 countries.
For others, the experience can render them unable to work or return to the life they had pre-cancer.
It is enough, in the very end, to render them unable to drink so they die, semi-conscious, of thirst.
This statement is backed up by footage within the video, as people are seen collapsing as the drugs render them unable to stand up.
But the hatred for legislating has gained a strong enough hold over the conservative mind as to render them unable to consider the merits of any bill at all.
In practice, the typical Capetonian's mix of laid-back cool and fear of missing the big party – or wave – will render them unable to commit to buying tickets for these events.
It afflicts about 100 babies a year, rendering them unable to process the amino acid leucine.
By making it impossible for sovereigns to restructure, he effectively rendered them unable to borrow in the US.
The two Americans have been released from custody, the committee investigators said, but their passports had been confiscated, rendering them unable to leave the country.
The BBC reports, "One in five Britons suffers from financialphobia, a recognisable condition rendering them unable to handle their personal finances, according to research".
Most of the vulnerabilities allow potential attackers to send controlling servers into infinite loops, rendering them unable to respond to commands from controllers.
