Jutro idziemy do weterynarza z kotem, bo od rana drapie kanapę i nie chce spać.

Polish often uses the present tense to talk about a planned or scheduled future action, especially with movement verbs.

So Jutro idziemy do weterynarza means Tomorrow we’re going to the vet.

This sounds a bit like English We’re going tomorrow. It suggests that the plan is already set.

You could also hear Jutro pójdziemy do weterynarza, which is more of a plain future statement.
Very roughly:

• idziemy = we’re going, it’s planned
• pójdziemy = we will go

Both can be correct, but idziemy is very natural here.

Because Polish usually drops subject pronouns when they are obvious from the verb ending.

• idziemy already means we go / we are going
• the ending -my tells you the subject is we

So adding my is usually unnecessary unless you want emphasis or contrast.

For example:

• Jutro idziemy do weterynarza = neutral
• Jutro my idziemy do weterynarza = emphasizes we, maybe contrasting with someone else

Because the preposition do requires the genitive case.

The base form is:

• weterynarz = vet

After do, it changes to:

• do weterynarza

This is very common with professions when you mean going to see that person:

• do lekarza = to the doctor
• do dentysty = to the dentist
• do weterynarza = to the vet

So here do does not just mean physical direction; it often means going to someone for an appointment or service.

Here z means with, and in that meaning it takes the instrumental case.

• kot = cat
• z kotem = with the cat

So the ending changes from -ot to -otem.

Compare:

• z psem = with the dog
• z dzieckiem = with the child
• z mamą = with Mom

Be careful: z can also mean from/out of, and then it uses a different case.
But here it clearly means with.

od rana means since the morning or since early this morning.

It tells you that the cat’s behavior started in the morning and has continued up to now.

So:

• bo od rana drapie kanapę = because it has been scratching the sofa since this morning

It’s best to learn od rana as a common time expression.

Because kanapę is the direct object, so it must be in the accusative case.

The dictionary form is:

• kanapa = sofa

As a direct object, it becomes:

• kanapę

So:

• drapie kanapę = is scratching the sofa

This is a very common pattern with feminine nouns ending in -a:

• książka → czytam książkę
• kawa → piję kawę
• kanapa → drapie kanapę

It is understood from context that the subject is the cat.

In the first part, we have:

• idziemy = we are going

Then after bo, the subject changes, but Polish often leaves it unstated if it is obvious:

• drapie = scratches / is scratching
• nie chce spać = does not want to sleep

From the sentence, the only logical subject is the cat.

So Polish often relies on context instead of repeating nouns or pronouns.

drapie is the 3rd person singular present form of drapać, meaning to scratch.

It is used because the action is ongoing or repeated. The sentence describes a current problem or symptom:

• the cat has been scratching the sofa
• the cat doesn’t want to sleep

So the present tense works naturally.

Also, Polish often uses the imperfective verb in situations like this, because the action is not a single completed event but repeated or continuing behavior.

Because after chcieć (to want), Polish uses the infinitive of the second verb.

So:

• chce spać = wants to sleep
• chce jeść = wants to eat
• chce wyjść = wants to go out

Here:

• nie chce spać = doesn’t want to sleep

Also note:

• chce is the 3rd person singular form of chcieć

Yes, in this sentence bo means because.

It is very common and natural in everyday Polish.

You could also say ponieważ, which also means because/since, but it sounds a bit more formal or more written.

So:

• bo = common, conversational
• ponieważ = more formal

In this sentence, bo is the most natural choice.

Because in standard Polish spelling, a clause introduced by bo is separated by a comma.

So:

• Jutro idziemy do weterynarza z kotem, bo od rana drapie kanapę i nie chce spać.

That comma is required in normal written Polish.

Polish word order is flexible, so some parts can be moved for emphasis. But the original sentence sounds neutral and natural.

Original:

• Jutro idziemy do weterynarza z kotem, bo od rana drapie kanapę i nie chce spać.

Possible variations:

• Z kotem jutro idziemy do weterynarza...
• Jutro z kotem idziemy do weterynarza...

These can sound slightly different in emphasis, but the meaning stays basically the same.

So the order is not fully fixed, but the given version is a very normal default order.

iść literally means to go on foot, while jechać means to go by vehicle.

So if you want to be very precise:

• idziemy do weterynarza = we’re going to the vet
• jedziemy do weterynarza = we’re going to the vet by car/bus/etc.

In everyday Polish, though, idziemy is often used quite naturally as a general we’re going, especially when the method of travel is not important.

So the sentence is completely normal.