I understand that につれて can be used to express changes brought about by A on B where the extent of change in A has a proportional effect on B.

For example, "感染者が増えるにつれて、亡くなる人がどんどん増えていく。"

However, does the direction of this change have to be the same?

For example, can I say something like:


  • 2
    +1 but it might be worth re-wording a bit. You question currently asks if one thing can increase while the other decreases, but your second example has one thing changing while another thing happens. This is a much broader question than your title suggests. Commented Apr 26, 2020 at 9:39
  • Oh I see it now! I meant to convey something like "As the downpour/rain increases, the number of birds flying in the sky decreases." Not sure what's the best way to say "as the rain increases" though. A quick scan through jisho.org seems like 雨が降り募る is a good option. Do you reckon that works?
    – wireman
    Commented Apr 26, 2020 at 9:59

1 Answer 1


No, they don't have to be the same. You can easily use this to describe inverse relationships.

For example you could say things like:

晴れの日が増えるにつれて、鬱病患者が減っていく。( As the number of sunny days increases, the number of people with depression decreases)

Here are some more examples:


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