Kardeşimle gurur duyuyorum, çünkü her sabah koşuyor.

Because gurur duymak normally takes the person with -le / -la.

So:

• kardeş = sibling
• kardeşim = my sibling
• kardeşimle = with my sibling

But in this expression, -le is not really translated as literal English with. In birisiyle gurur duymak, it means to be proud of someone.

So Kardeşimle gurur duyuyorum means I am proud of my sibling.

Also, -le is the shortened form of ile:

• kardeşim ile → kardeşimle

Kardeşim consists of:

• kardeş = sibling / brother / sister
• -im = my

So:

• kardeş = sibling
• kardeşim = my sibling

A useful point: kardeş is gender-neutral in Turkish. It can mean brother or sister, and context tells you which one is meant.

Literally, it is something like I am feeling/sensing pride.

Breakdown:

• gurur = pride
• duymak = to hear, feel, sense
• duyuyorum = I am feeling / sensing

Together, gurur duymak is a fixed expression meaning to be proud.

So even though the literal parts may seem unusual to an English speaker, you should learn gurur duymak as a whole expression:

• Seninle gurur duyuyorum = I am proud of you
• Onunla gurur duyuyoruz = We are proud of him/her

Because the verb is duymak and in the present continuous it becomes duyuyor-.

The pattern is:

• verb stem + -(I)yor
  • personal ending

For duymak:

• stem: duy-
• present continuous: duyuyor
• first person singular: duyuyorum

So:

• duyuyor = he/she is feeling
• duyuyorum = I am feeling

This comes from normal Turkish sound patterns. It may look long, but it is the standard form.

They are both in the present continuous tense, formed with -yor.

• duyuyorum = I am feeling / I feel
• koşuyor = he/she is running

In Turkish, the -yor form is often used not only for something happening right now, but also for a current habit or repeated action.

So her sabah koşuyor literally looks like he/she is running every morning, but in natural English it means he/she runs every morning or he/she goes running every morning.

Because Turkish often uses the present continuous for habits that are seen as part of someone’s current routine.

So:

• Her sabah koşuyor = He/she runs every morning

A learner might expect the aorist/habitual form koşar, and that can also express habitual meaning in some contexts. But koşuyor is very common when talking about what someone regularly does these days or as an ongoing pattern.

So here, koşuyor sounds very natural.

Çünkü means because.

It connects the two ideas:

• Kardeşimle gurur duyuyorum = I am proud of my sibling
• çünkü her sabah koşuyor = because he/she runs every morning

So the whole sentence means:

• I am proud of my sibling because he/she runs every morning.

A very common sentence pattern in Turkish is:

• Main clause + çünkü + reason

Example:

• Mutluyum, çünkü tatildeyim.
• I’m happy because I’m on vacation.

It is built into the verb.

In duyuyorum, the ending -um shows I.

So Turkish often does not need a separate subject pronoun:

• (Ben) kardeşimle gurur duyuyorum.
• I am proud of my sibling.

The word ben can be added, but usually only for emphasis or contrast.

So:

• Kardeşimle gurur duyuyorum is completely natural.
• Ben kardeşimle gurur duyuyorum puts extra stress on I.

Because the subject is understood from context.

The sentence is talking about my sibling, so in the second clause Turkish simply leaves the subject out:

• çünkü her sabah koşuyor = because he/she runs every morning

This is very normal in Turkish. If needed, you could make it explicit:

• çünkü o her sabah koşuyor

But usually that would be unnecessary, since the listener already knows who is being discussed.

Turkish word order is more flexible than English, but verbs often come near the end of the clause.

In this sentence:

• Kardeşimle gurur duyuyorum
• literally: With my sibling pride am-feeling

And:

• çünkü her sabah koşuyor
• literally: because every morning runs

So compared with English, Turkish often places:

• time expressions like her sabah before the verb
• the main verb at the end of the clause

This is one reason Turkish can feel reversed to English speakers.

Not always strictly required, but it is very common and natural in writing.

So both of these may be seen:

• Kardeşimle gurur duyuyorum, çünkü her sabah koşuyor.
• Kardeşimle gurur duyuyorum çünkü her sabah koşuyor.

Using the comma helps separate the main statement from the reason, especially in a sentence like this.