Haiti's provisional government has proved incapable of helping its people.

Eventually, the system proved incapable of producing timely and accurate management information.

Those who, during the first 11 weeks, prove incapable of the necessary performances, are moved to other incorporations.

If they just prove incapable of sticking with that program, they could kill themselves.

I want you to report to me immediately if he proves incapable.

And a serious environmental crisis has proved incapable of generating a unanimous response from all countries.

When, in December, we tried to find a common approach at first reading, it proved incapable of talking with us at all.

If it is ever the case that even one citizen should prove incapable of this, they say, then their system has already failed.

But its management systems proved incapable of handling further growth this year.

At the latter battle he proved incapable of handling his troops in action.