She could be a great ally, if only he could trust her.

They were patient, for time was their great ally.

Israel is a sovereign nation, not open to public demands from another country, even its great ally.

"Time is the great ally of the target," he explained.

I lost a very close friend, a reliable adviser and a great ally.

But she doubts that winter will be a great ally to the opposition.

Since then she had proved to be a good boss and a great ally.

Then you remember what great allies came to his assistance.

One of our great allies at present is the Church itself.

But they are a proud, fierce people, and great allies in our fight.