Zgadamy się jutro.

Because zgadać się is a perfective verb. In Polish, perfective verbs do not have a normal present tense for current actions. Their present-looking forms are used to talk about the future.

So zgadamy się jutro means something like we’ll talk / we’ll get in touch tomorrow, not we talk tomorrow.

A similar pattern is:

• zrobię to jutro = I’ll do it tomorrow
• napiszesz później = you’ll write later

This is very normal in Polish.

No. This is a very common point of confusion.

• zgadzać się / zgodzić się = to agree
• zgadać się in this kind of sentence = to talk, get in touch, coordinate, sort something out by talking in an informal way

So zgadamy się jutro does not mean we will agree tomorrow.

If you wanted we will agree tomorrow, you would normally say zgodzimy się jutro.

It is usually more like:

• we’ll talk tomorrow
• we’ll be in touch tomorrow
• we’ll coordinate tomorrow
• we’ll sort it out tomorrow by talking

It often suggests a short future contact, not necessarily a long serious conversation.

Compared with porozmawiamy jutro, zgadamy się jutro sounds more colloquial and often a bit more like we’ll connect and figure it out.

Here się is part of the verb expression zgadać się. You should learn it as a whole unit.

It does not literally mean ourselves in any useful English way here. In many Polish verbs, się is just part of how the verb works.

So:

• zgadamy się = correct
• leaving out się would change the expression and would not mean the same thing

Because Polish verb endings usually show the subject clearly.

In zgadamy, the ending -my tells you it is we.

So Polish often drops subject pronouns unless they are needed for emphasis or contrast.

You could say My zgadamy się jutro, but that would usually sound emphatic, like we will talk tomorrow.

Yes. That is perfectly natural.

Polish word order is fairly flexible, so both of these work:

• Zgadamy się jutro
• Jutro się zgadamy

The difference is mostly about emphasis:

• Zgadamy się jutro puts the action first
• Jutro się zgadamy highlights tomorrow

One useful point: się usually does not go at the very beginning of the sentence, so Się zgadamy jutro would sound wrong or very unnatural.

It is informal / colloquial.

That does not mean rude, but it is casual speech. You would use it with friends, coworkers you speak casually with, or in everyday conversation.

In more formal Polish, people often prefer things like:

• Skontaktujemy się jutro = We’ll contact each other tomorrow / We’ll be in touch tomorrow
• Porozmawiamy jutro = We’ll talk tomorrow

So zgadamy się jutro is natural, but not the most formal choice.

Yes. The core is gadać, which means to talk / chat in a casual way.

The form zgadać się is built from that base and is used as a perfective, informal verb. In practice, it gives the idea of having that contact/conversation once, as a completed event.

A useful way to think about it is:

• gadać = talking, chatting, speaking casually
• zgadać się = to get together by talking, get in touch, talk something over once

Still, it is best to learn zgadać się as a complete expression, because the meaning is a bit idiomatic.

Yes, often you could, but the nuance changes a little.

• Pogadamy jutro = We’ll chat/talk tomorrow
• Zgadamy się jutro = We’ll talk/get in touch/coordinate tomorrow

So pogadamy sounds more like simple conversation, while zgadamy się often suggests some practical follow-up or arranging something.

Depending on context, both may be good.

It is a time adverb meaning tomorrow, and it helps make the future meaning completely clear.

Even without jutro, zgadamy się can already mean we’ll talk / get in touch, because the verb is perfective. But jutro adds the specific time.

So the sentence combines:

• a perfective verb form that points to a future completed action
• jutro, which tells you when

That is why the whole sentence sounds very natural and clear.