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knowledge of is the most popular phrase on the web.

a knowledge of 1118,000,000 results on the web	knowledge of 1889,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
to But clearly they were fashioned by beings with a knowledge of metallurgy. Professionals benefiting from the recognition of professional qualifications shall have a knowledge of languages necessary for practising the profession in the host Member State. There is every likelihood that a knowledge of crude oil supply conditions is considerably more reliable than the picture provided by day day market prices. In practice, given the areas concerned, a knowledge of at least French or English is necessary'. Well, this little escapade of ours requires a knowledge of the German film industry under the Third Reich. However, it is a very important element in the correct exercise of Members' duties which, together with a knowledge of the matter in hand and impartial judgement, will make it easier and more effective to carry out their duties.	My knowledge of it is profound. I overestimated my knowledge of the land. Sure? Your knowledge of my requirements dear brother is extensive, but not necessarily complete. Very good manners and correct opinions, and a wide knowledge of the world. I have little knowledge of this matter... The Presidency has no knowledge of this request. My knowledge of it is profound.

a knowledge of

1118,000,000 results on the web

knowledge of

1889,000,000 results on the web

More popular!

to
But clearly they were fashioned by beings with a knowledge of metallurgy.
Professionals benefiting from the recognition of professional qualifications shall have a knowledge of languages necessary for practising the profession in the host Member State.
There is every likelihood that a knowledge of crude oil supply conditions is considerably more reliable than the picture provided by day
day market prices.
In practice, given the areas concerned, a knowledge of at least French or English is necessary'.
Well, this little escapade of ours requires a knowledge of the German film industry under the Third Reich.
However, it is a very important element in the correct exercise of Members' duties which, together with a knowledge of the matter in hand and impartial judgement, will make it easier and more effective to carry out their duties.

My knowledge of it is profound.
I overestimated my knowledge of the land.
Sure?
Your knowledge of my requirements dear brother is extensive, but not necessarily complete.
Very good manners and correct opinions, and a wide knowledge of the world.
I have little knowledge of this matter...
The Presidency has no knowledge of this request.
My knowledge of it is profound.