In the following sentence, why is "can" appropriate than "could"? Is it a grammar thing? please explain.

The more satisfied you are with your job, the more effort you could put into your work.

  • Is this a sentence you wrote or one that you found? If the former, what are you trying to say with can*/*could? If the latter, please include a link to the source. – Alan Carmack Jul 29 '16 at 18:47

Both "can" and "could" are ok, but "can" is more natural assuming the sentence is trying to convey a universal truth.

Using "could" would make the sentence feel more hypothetical, or possibly make reference to a past time, while "can" seems to match the present tense of the first clause "you are".

Since the sentence seems intended to assert that something is the case in general, the idea that the ability to make effort depends on satisfaction, then the use of can seems best.


Neither "can" nor "could" is appropriate here. In this context, both refer to ability, and your ability to put effort into your work is not dependent on your level of satisfaction. So we're really talking about probability here, not possibility or ability, which means we want "might":

"The more satisfied you are with your job, the more effort you might put into your work."

  • I agree that the use of could by native speakers is not likely in this sentence, but I also suggest that would is much likely than might here. – Alan Carmack Jun 29 '16 at 17:49
  • I see nothing wrong with the idea that ability to put effort into your work depends on satisfaction - that seems to be precisely what the sentence is intending to convey. – Zanna Sep 24 '20 at 6:44

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