אני רוצה לקבוע בדיקה בקופת החולים מחר בבוקר.

In the present tense, Hebrew often marks gender but not person.

So:

• a male speaker says אני רוצה and pronounces rotze
• a female speaker says אני רוצה and pronounces rotza

The spelling is the same, but the pronunciation changes.

Usually, אני is helpful here because רוצה by itself does not tell you the person clearly. It only shows gender and number.

So רוצה could mean:

• I want (if the context makes that clear)
• you want in some contexts? No, not in standard modern usage with this exact form
• but most importantly, it does not function like a fully conjugated past/future verb that clearly marks I

Since present-tense forms in Hebrew are less specific than past/future forms, speakers often include the subject pronoun: אני רוצה.

לקבוע literally means to set, to schedule, or to arrange.

In this sentence, it means something like:

• to schedule
• to make an appointment for
• to arrange

So לקבוע בדיקה is to schedule a checkup/test/appointment.

Because בדיקה here is indefinite: it means a checkup / an examination / a test, not the checkup.

In Hebrew, את is used before a definite direct object.

So:

• לקבוע בדיקה = to schedule a checkup
• לקבוע את הבדיקה = to schedule the checkup

Since the sentence uses the indefinite idea, there is no את.

בדיקה is a broad word. Depending on context, it can mean:

• checkup
• examination
• test
• medical exam

In a healthcare sentence like this, it usually refers to some kind of medical check, exam, or test.

This is a very useful Hebrew expression.

קופת חולים is a fixed phrase for an Israeli health fund / HMO.
Literally, it comes from a structure called the construct state:

• קופה = fund, register, cash desk, box
• חולים = sick people / patients
• קופת חולים = health fund

When Hebrew puts two nouns together in this way, the first noun often changes form. So:

• קופה becomes
• קופת

Then in your sentence:

• ב־ = in / at
• קופת החולים = the health fund
• בקופת החולים = at the health fund / at the HMO / through the health clinic

So this is not just random vocabulary; it is a common noun-chain pattern in Hebrew.

Because in a Hebrew construct chain, the definiteness is usually marked on the second noun, but it makes the whole phrase definite.

So:

• קופת חולים = a health fund
• קופת החולים = the health fund

Even though קופת itself does not take ה, the whole expression becomes definite because החולים is definite.

That is a normal feature of Hebrew construct phrases.

Because the preposition ב־ (in / at) attaches directly to the next word.

So:

• ב + קופת = בקופת
• ב + הבוקר = בבוקר

In the second case, ב + ה often contracts into one written form, so בהבוקר does not appear; instead you get בבוקר.

This is very common in Hebrew:

• בבית = in a house / at home
• בבית הספר = at the school
• בבוקר = in the morning

That is a very natural Hebrew word order.

The sentence goes roughly like this:

• אני רוצה = I want
• לקבוע בדיקה = to schedule a checkup
• בקופת החולים = at the health fund / HMO
• מחר בבוקר = tomorrow morning

Putting the time at the end is very normal in Hebrew, just as in English. You could move time expressions around for emphasis, but the given order is neutral and natural.

• בבוקר = in the morning
• מחר בבוקר = tomorrow morning

Adding מחר makes the time specific.

So if you only said בבוקר, the listener might need context to know which morning.

Yes, and that is a very common question.

• תור = appointment / turn / queue slot
• בדיקה = the checkup/test itself

So:

• לקבוע תור = to make an appointment
• לקבוע בדיקה = to schedule a checkup/test

In everyday speech, לקבוע תור is often the more common phrasing when you are focusing on the appointment itself.

No. They are very different:

• קופת חולים = health fund / HMO / community healthcare provider
• בית חולים = hospital

This is an important distinction.

So בקופת החולים usually means at your healthcare provider or clinic system, not at a hospital.

The sentence itself does not need to change just because the speaker is being polite. Hebrew politeness is often shown more by tone, wording, or adding softening phrases.

For example, someone might say:

• אני רוצה לקבוע בדיקה...
• אני צריך/צריכה לקבוע בדיקה...
• אפשר לקבוע בדיקה...?

That last option, אפשר לקבוע בדיקה...?, often sounds softer and more polite in service situations, like speaking to a receptionist.

It is neutral and natural. It works well in everyday spoken Hebrew, especially in a medical or administrative context.

It is not slangy, and it is not overly formal. That makes it a good practical sentence for real-life use.