Some examples and use cases from the internet:

Some examples and use cases from the internet:

• Neither of us was proficient at using a saw and we'd managed only two rungs when exhaustion caught up with us and the light faded for permanently. While the  ...
• He has become very proficient at computer programming. She is proficient in two foreign languages. With this system, a large pool of teachers are asked to ...
• May 20, 2008 ... I always find "proficient in a language" and "skilled in a language" but at times I find examples with "proficient at doing" and "skilled at doing"
• Jan 11, 2012 ... If you meant he was skilled in understanding and working with English people, you'd have to say "proficient at working with English people".

• Are you proficient in other languages?
• Proficient in folk dancing I see.
• cha.
• I'm not proficient in that sort of...
• He's proficient in six different martial arts, and he lives most of the year in Brussels.
• Proficient in the rumba, waltz and cha
• He fought someone proficient in martial arts.
• He'd be proficient in sewing skins and hides.