This question already has an answer here:

I am working at/ for the police. I am working at/ for the army. I am playing for/at fc Barcelona.

Do we have to say at or for here?

marked as duplicate by Cascabel, Janus Bahs Jacquet, Mari-Lou A, green_ideas, choster Jan 27 at 21:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • This question will likely be put on hold, for several reasons. Firstly, it shows no research effort on your behalf – if you have looked around for an answer to your questions, please use the ‘Edit’ button to add in where you’ve looked, what you learned, and what precisely is still unclear to you. Secondly, because you’re asking at least two different questions in one: you’re assuming the same preposition should be used in all three cases, with two different verbs (and that it must be either for or at), which may not be the case. – Janus Bahs Jacquet Jan 27 at 18:30

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