по воскресеньям? в воскресеньи?

'Вы всегда ходите в ботанический сад по воскресеньям?'
'Она всегда ходить в клуб в воскресеньи?'
One means 'on Sundays, the other means 'On Sunday'. Why choose on for one sentence, and the other for the other sentence, when (as I see it) the sense of both sentences are identical?
Thanks

'Она всегда ходить в клуб в воскресеньи?' - it is incorrect or, maybe, outdated.

Quote:

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Originally Posted by grafrich

[I]
...One means 'on Sundays, the other means 'On Sunday'...
Thanks

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Then I guess a spelling error is in place and you meant:

в воскресенье (single Sunday).

I see how some people can say:

Она всегда ходит в клуб в воскресенье...

but frankly, that's not very good Russian. Всегда ходить implies multiple iterations of the same action, therefore it'll be much better to say that it happens on "multiple" Sundays, not just one.

Она всегда ходит в клуб по воскресеньям. This one is alright :)

Ah I did indeed make a spelling mistake, you were right iCake. 'в воскресенье' (or 'в воскресеньи...) didnt seem to make sense to me either.

Thanks both, resolved!