Не могли б Ви подивитися в календар і нагадати мені дату?

Literally, it is close to Couldn’t you..., but in real usage it is a polite request, not a complaint.

In Ukrainian, Не могли б Ви... is a very common softening formula, similar to English Could you please... or Would you mind.... The не does not make the request truly negative in meaning here. It just makes it more indirect and polite.

So this sounds much softer than a direct imperative like Подивіться в календар...

б is a conditional particle. It helps create the meaning would or could.

So:

• могли = were able / could
• могли б = could / would be able to

In this sentence, Не могли б Ви... is the standard polite conditional structure.

You may also see би instead of б. They are the same particle, just different forms used in different positions:

• Не могли б Ви...
• Не могли би Ви...

Both are correct.

Because it agrees with Ви.

In Ukrainian, Ви is used:

• for you plural
• for formal/polite you when speaking to one person

So even if you are talking to just one person politely, the verb goes in the plural form:

• Не могли б Ви...

If you were speaking informally to one person, you would use ти, and the form would change:

• Не міг би ти... if speaking to a male
• Не могла б ти... if speaking to a female

This happens because in the conditional, Ukrainian uses a past-tense-like form, and past tense shows gender in the singular.

Capital Ви is a written politeness marker.

When addressing one person respectfully, especially in messages, letters, emails, or formal writing, Ukrainians often write Ви, Ваш, and so on with a capital letter.

Lowercase ви is also possible, especially:

• when talking to several people
• in less formal writing
• in more modern or neutral style

So the capital letter here emphasizes politeness and respect.

Because подивитися is perfective, and it fits a single completed action: take a look.

Compare:

• дивитися = imperfective, ongoing or repeated action, to look / to watch
• подивитися = perfective, one complete action, to take a look

In this sentence, the speaker is asking someone to do one specific thing once: check the calendar. That is why подивитися is natural.

Yes, both can exist, but the nuance can differ.

подивитися в календар suggests look in/into the calendar, meaning consult it for information.

подивитися на календар suggests look at the calendar more literally, as an object.

In practice, with something used as a source of information, в календар works well. It feels like check the calendar rather than just direct your eyes toward it.

It is in the accusative case after в.

With verbs like подивитися в..., Ukrainian uses в/у + accusative.

So grammatically this is accusative singular:

• в календар

But календар is a masculine inanimate noun, and for that type of noun, the accusative singular often looks exactly like the nominative singular. So the form does not visibly change.

For the same reason as подивитися: aspect.

• нагадувати = imperfective, repeated or ongoing reminding
• нагадати = perfective, remind once, successfully complete the action

Here the speaker wants one completed result: remind me of the date. So нагадати is the natural choice.

They are in different cases because they do different jobs in the sentence.

• мені is dative: the person receiving the reminder
• дату is accusative: the direct object, the thing being reminded

So:

• нагадати мені дату = remind me of the date

This is a useful pattern:

• дати мені книгу = give me the book
• показати мені фото = show me the photo
• нагадати мені дату = remind me of the date

Both patterns are possible, but they are not exactly the same.

• нагадати мені дату = remind me of the date itself, tell me what the date is
• нагадати мені про дату = remind me about the date, remind me that there is some date/event I should remember

In your sentence, дату without про fits the idea of giving the actual date again.

Yes. The polite request covers both infinitives:

• подивитися в календар
• нагадати мені дату

So the full structure is basically:

• Could you [look in the calendar] and [remind me of the date]?

There is no comma before і because it is simply joining two coordinated infinitives in one request.

Ukrainian word order is fairly flexible, but the given version is natural and neutral.

This sentence flows well because it presents:

1. the polite request formula
2. the first action
3. the second action
4. the object of the second action

You could move some parts for emphasis, but it may sound less neutral. For example:

• Не могли б Ви подивитися в календар і дату мені нагадати?

That version is understandable, but it gives extra emphasis to дату or мені. The original sentence is the safest standard choice.

You would usually replace Ви with ти, and then the verb form changes too.

Examples:

• to a male friend: Не міг би ти подивитися в календар і нагадати мені дату?
• to a female friend: Не могла б ти подивитися в календар і нагадати мені дату?

So in informal singular speech, the conditional form reflects gender:

• міг би for a male
• могла б for a female

That is a feature English does not have, so it often stands out to learners.