Bu sekmede tablo açık, öteki sekmede de not kâğıdındaki maddeleri yazıyorum.

Sekme means tab, as in a browser tab or an app tab.

The ending -de is the locative suffix, which often means in, on, or at depending on context.

So sekmede means in the tab or on the tab.

In computer-related Turkish, this locative form is very common:

• bu sekmede = in this tab
• öteki sekmede = in the other tab

Because Turkish often leaves out the present-tense form of to be in simple statements.

So:

• tablo açık literally looks like table open
• but it means the table is open

This is completely normal Turkish. A more formal or emphatic version could use -dır:

• Tablo açıktır

But in everyday language, tablo açık is the natural choice.

Here:

• tablo = table, chart, or grid, depending on context
• açık = open

So tablo açık means the table is open, visible, or currently displayed.

In computer contexts, açık often means something is currently open on the screen, not physically open.

• bu = this
• öteki = the other one, that other one

So the sentence contrasts two tabs:

• bu sekmede = in this tab
• öteki sekmede = in the other tab

Öteki is often used when you are contrasting one thing with another. It feels a bit like pointing to the other member of a pair.

A similar word is diğer, which also means other, but öteki can feel a little more specific or contrastive in sentences like this.

This de means also, too, or as well.

So:

• öteki sekmede de = in the other tab too

Important: this de is written separately because it is a particle, not a case ending.

That means the sentence contains both:

• sekme-de = in the tab with the locative suffix
• de = also

So sekmede de has two different de forms next to each other.

A useful nuance:

• öteki sekmede de yazıyorum emphasizes the location: I’m writing in the other tab too
• maddeleri de yazıyorum would emphasize the object: I’m writing the items too

Because Turkish noun compounds often work differently from English.

In a compound like note paper, Turkish usually puts a special ending on the second noun:

• not = note
• kâğıt = paper
• not kâğıdı = note paper / note sheet

That -ı / -i / -u / -ü type ending on the second noun is very common in Turkish compounds.

Also, kâğıt changes to kâğıdı because final t often becomes d before a vowel-initial suffix.

So:

• kâğıt
• kâğıdı

It is a layered form:

• not = note
• kâğıdı = paper in the compound not kâğıdı
• not kâğıdında = on/in the note paper
• not kâğıdındaki = the one(s) on/in the note paper

So not kâğıdındaki maddeler means:

• the items on the note paper
• or more literally, the items that are on the note paper

This is a very common Turkish pattern.

That n is a buffer consonant.

The form goes like this:

• kâğıdı = paper in the compound form
• then the locative is added
• after this kind of possessed/compound form, Turkish usually inserts n before a case ending

So:

• kâğıdı + da would not be used directly here
• instead it becomes kâğıdında

Then -ki is added:

• kâğıdında + ki = kâğıdındaki

This is a normal grammar pattern after possessed nouns and compound nouns.

-ki turns a location phrase into something that can describe a noun.

Compare:

• evde = in the house
• evdeki = the one in the house / the thing in the house

So:

• not kâğıdında = on the note paper
• not kâğıdındaki maddeler = the items that are on the note paper

You can think of -ki here as something like that is in/on/at.

Other examples:

• masadaki kitap = the book on the table
• çantadaki telefon = the phone in the bag

Here maddeleri comes from:

• madde = item, point, entry
• maddeler = items
• maddeleri = the items, as a definite direct object

The ending here shows that the speaker is talking about specific items, not just any items.

So:

• maddeler yazıyorum would sound wrong here
• maddeleri yazıyorum = I am writing the items

This is the accusative use of the object.

Also, maddeleri can sometimes be ambiguous in isolation, because it can also mean his/her items in other contexts. But here, with yazıyorum, it clearly means the items as the direct object.

In this context, madde means something like:

• item
• point
• bullet point
• listed entry

So not kâğıdındaki maddeler are the points or bullet items written on the note paper.

This is a common meaning of madde when talking about lists, outlines, instructions, or notes.

Yazıyorum is the present continuous form of yazmak.

Breakdown:

• yaz- = write
• -ıyor = present continuous marker
• -um = I

So yazıyorum means I am writing.

In this sentence, it suggests an action happening now or around now:

• I’m currently writing those items in the other tab

Yes, but that is normal in Turkish.

The ending -um in yazıyorum already tells you the subject is I.

So Turkish often drops subject pronouns when the verb makes the subject clear:

• yazıyorum = I am writing
• yazıyorsun = you are writing
• yazıyor = he/she/it is writing

You could say ben yazıyorum, but that would add emphasis:

• I’m the one writing

It can mean both.

In Turkish, yazmak is used for:

• writing by hand
• typing on a keyboard
• writing text in general

Because this sentence talks about tabs, many learners would naturally understand yazıyorum here as I’m typing or I’m entering the items.

Turkish does not always make a strict distinction between handwriting and typing unless the context requires it.

Turkish usually puts the verb at the end, and information like location and object often comes before it.

So the structure is roughly:

• Bu sekmede = in this tab
• tablo açık = the table is open
• öteki sekmede de = in the other tab too
• not kâğıdındaki maddeleri = the items on the note paper
• yazıyorum = I am writing

That is very natural Turkish word order.

The comma separates two related clauses:

• one clause describes what is open in one tab
• the other clause describes what the speaker is doing in the other tab