[Grammar] work at / in a bank

[uktous]

Hi,

Question:
1) When will we use "work in"?
2) When will we use "work at"?
3) Which sentences are corect?

Sentence1:
I work in a bank
Sentence2:
I work at a bank
Sentence3:
I work in ABC Ltd
Sentence4:
I work at ABC Ltd

Thanks

 

[jlinger]

There is often no difference.

You would use "in" to imply you are part of the organization, and not stress the location; or you would use "in" to specify that you have an inside job. A doorman, for example, works at a hotel; the front desk clerk works in a hotel.

You would use "at" to stress the location. "I work at Sears downtown."

We use "in" to speak of a general industry. "I work in travel" or "I work in stocks and bonds."