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> 私 **と** 協力してください。  
>  私 **に** 協力してください。  
>  Please cooperate with me.

Is there any difference in meaning/usage/nuance when choosing と or に to go
with the verb 協力する?

If I had to guess maybe I'd say that 私 **と** 協力してください would mean "please let's
work equally together". Whereas 私 **に** 協力してください would be "please give your
cooperation to me". So と would sound a bit more gentle, maybe?

A google search shows that に is more common but I suspect that might be
because of adverbs ending in に.

How about this sentence:

> 世界の国が行う宇宙の調査に協力します

Does this read more like "cooperate with" or "contribute to"? Can I replace に
with と here?
CC BY-SA 3.0
2017-07-02T15:28:13.113
48960
2017-07-02T21:31:21.073
2017-07-02T15:51:22.327
7944
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question
grammar nuances particle-に particle-と
協力する particle usage
The difference between 私と協力してください and 私に協力してください is small, and they are
usually interchangeable. While the latter is simple "please help me", the
former does sound more like "let's do it _together with_ me", although saying
"equally" would be a bit too much.

In 世界の国が行う宇宙の調査に協力します, you cannot replace this に with と, because you won't do
something together with the 調査 itself.
CC BY-SA 3.0
2017-07-02T21:31:21.073
48971
2017-07-02T21:31:21.073
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48960
answer