Anahtarlığım komodinin çekmecesinde kaldı, bu yüzden kapıyı hemen açamadım.

Anahtarlığım means my keychain / my key holder / my key ring.

It breaks down like this:

• anahtarlık = keychain, key holder
• -ım = my

So:

• anahtarlık → anahtarlığım = my keychain

The final k in anahtarlık changes to ğ before the vowel-initial possessive ending -ım, which is a very common sound change in Turkish:

• kitap → kitabım
• çocuk → çocuğum
• anahtarlık → anahtarlığım

Because Turkish often uses a possessive-type structure for X’s Y.

Here:

• komodin = bedside table / nightstand
• komodinin = of the bedside table / the bedside table’s

So komodinin çekmecesi literally means:

• the drawer of the bedside table

This is a standard Turkish noun phrase pattern:

• X-in Y-si

Examples:

• evin kapısı = the door of the house
• arabanın rengi = the color of the car
• komodinin çekmecesi = the drawer of the bedside table

Çekmecesinde means in its drawer / in the drawer.

It can be broken down like this:

• çekmece = drawer
• -si = its / the (3rd person possessive marker in this construction)
• -nde = in / on / at

So:

• çekmece → drawer
• çekmecesi → its drawer / the drawer of it
• çekmecesinde → in its drawer / in the drawer

This matches the earlier word komodinin:

• komodinin çekmecesinde
  = in the bedside table’s drawer
  = more naturally in English, in the drawer of the bedside table or in the bedside table drawer

The -s- is just a linking consonant that appears before some endings.

Yes, the basic meaning of kalmak is to stay, to remain, or to be left.

In this sentence, kaldı is best understood as:

• was left
• ended up staying
• remained

So Anahtarlığım komodinin çekmecesinde kaldı means something like:

• My keychain was left in the bedside table drawer
• My keychain stayed in the bedside table drawer

This use of kalmak is very natural in Turkish when something unintentionally remains somewhere.

Good question. The difference is about perspective.

• bıraktım = I left it there
  This focuses on your action.
• kaldı = it remained / was left there
  This focuses on the result or situation.

So:

• Anahtarlığımı çekmecede bıraktım = I left my keychain in the drawer.
• Anahtarlığım çekmecede kaldı = My keychain ended up being left in the drawer / remained in the drawer.

The version with kaldı can sound a bit more like “that’s where it ended up,” often with an accidental or inconvenient nuance.

Bu yüzden means because of this, for this reason, or simply so / therefore.

In this sentence:

• ..., bu yüzden kapıyı hemen açamadım.
• ..., so I couldn’t open the door immediately.

It connects the two parts logically:

1. The keychain was left in the drawer.
2. As a result, the speaker couldn’t open the door right away.

Other similar expressions are:

• bu nedenle = for this reason, therefore
• o yüzden = that’s why, so

Because kapı is the direct object of open, and in Turkish a specific direct object usually takes the accusative ending.

• kapı = door
• kapıyı = the door

So:

• kapıyı açmak = to open the door

This is the definite/direct-object marking in Turkish.

Compare:

• Kapı açtım would sound unnatural here.
• Bir kapı açtım = I opened a door
• Kapıyı açtım = I opened the door

Since the speaker means a specific door, kapıyı is required.

Açamadım means I could not open or I wasn’t able to open.

It breaks down like this:

• aç- = open
• -a / -e = vowel used before the inability form
• -ma- / -me- = inability/negative ability marker in this pattern
• -dı = past tense
• -m = I

So:

• aç-a-ma-dı-m = I could not open

This is the common Turkish pattern for not being able to do something:

• gelemedim = I couldn’t come
• bulamadım = I couldn’t find
• yapamadım = I couldn’t do it
• açamadım = I couldn’t open it

This is not just plain negation (I did not open); it usually means I was unable to open.

This is an important difference.

• açmadım = I did not open
• açamadım = I could not open / I wasn’t able to open

So:

• Kapıyı açmadım = I didn’t open the door.
  Maybe I chose not to.
• Kapıyı açamadım = I couldn’t open the door.
  Something prevented me.

In your sentence, açamadım is the right choice because the reason is that the keychain was left in the drawer.

Hemen means immediately, right away, or at once.

So:

• kapıyı hemen açamadım = I couldn’t open the door right away

Its placement before the verb is very natural in Turkish. Turkish word order is flexible, but this is a common and neutral placement.

You could also hear variations like:

• Hemen kapıyı açamadım
• Kapıyı açamadım hemen (less neutral, more context-dependent)

The original version sounds normal and natural.

Because Turkish usually does not need subject pronouns when the verb ending already shows the person.

In açamadım, the final -m tells you the subject is I.

So:

• açamadım = I couldn’t open
• açamadın = you couldn’t open
• açamadı = he/she/it couldn’t open

That means ben is unnecessary unless you want emphasis or contrast.

For example:

• Ben açamadım, ama o açtı.
  I couldn’t open it, but he/she did.

The first part is:

• Anahtarlığım komodinin çekmecesinde kaldı.

Literally, this is close to:

• My keychain in the bedside table’s drawer remained.

A more natural English rendering is:

• My keychain was left in the bedside table drawer.

Turkish often places location information before the verb, and the verb comes at the end:

• [Subject] [Location] [Verb]

So this sentence follows a very normal Turkish pattern.

Strictly speaking, anahtarlık means something like:

• keychain
• key ring
• key holder

It is the object that holds the keys.

In real life, though, people may use it a bit loosely when talking about the set of keys together with the keychain. So depending on context, it may effectively refer to my keys as a practical matter.

If someone wanted to be very specific, they might say:

• anahtarlarım = my keys
• anahtarlığım = my keychain / key ring

In your sentence, either way, the important point is that the thing needed to open the door was left in the drawer.