Я и зимой люблю гулять в парке.

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Breakdown of Я и зимой люблю гулять в парке.

• любить: to love
• парк: the park
• в: in

Questions & Answers about Я и зимой люблю гулять в парке.

What does и mean here? Is it really and?

Not in the basic and sense.

In Я и зимой люблю гулять в парке, и means something like:

• also
• too
• sometimes even

So и зимой means in winter too or even in winter.

The exact nuance depends on context:

• Я люблю гулять в парке летом. Я и зимой люблю гулять в парке.
  = I like walking in the park in summer. I like it in winter too.

• If the speaker is stressing that winter is surprising, it can feel like:
  I even like walking in the park in winter.

Why is зимой in that form?

Because Russian often uses the instrumental case for seasons when talking about time.

So:

• зима = winter
• зимой = in winter

This is a very common pattern:

• весной = in spring
• летом = in summer
• осенью = in autumn
• зимой = in winter

Here зимой is functioning almost like an adverb of time.

Can I say в зиме for in winter?