Я вошёл в квартиру, привычно повесил куртку и заодно поставил чайник.

Вошёл is the perfective past of войти and means entered / went in as a completed action.

• Я вошёл в квартиру = I entered the apartment
• Я шёл = I was walking / I went on foot (focus on the process, not the moment of entering)
• Я заходил is usually an imperfective verb meaning something like I dropped by / I came in in a more general or repeated sense, depending on context

Here the sentence lists a sequence of completed actions:

1. I entered
2. I hung up my jacket
3. I put the kettle on

So вошёл fits that narrative perfectly.

Because Russian uses different cases after в depending on whether there is movement into something or location inside something.

• в квартиру = into the apartment → accusative
• в квартире = in the apartment → prepositional

So:

• Я вошёл в квартиру = I entered the apartment
• Я был в квартире = I was in the apartment

A very common pattern:

• motion into a place → в + accusative
• being in a place → в + prepositional

Куртку is the accusative singular of куртка because it is the direct object of повесил.

Dictionary form:

• куртка = jacket

After the verb повесить (to hang up), the thing being hung is normally in the accusative:

• повесил куртку = hung up the jacket
• повесил пальто = hung up the coat

Since куртка is a feminine noun ending in -а, the accusative singular changes to -у:

• куртка → куртку

Привычно is an adverb meaning something like:

• habitually
• out of habit
• in a familiar way
• automatically, as usual

In this sentence it suggests that hanging up the jacket is part of the speaker’s normal routine.

So:

• привычно повесил куртку = hung up my jacket out of habit / as usual

It adds a natural, everyday feeling to the sentence.

Because in Russian, once the subject is clear, it is often omitted or not repeated.

The sentence starts with Я вошёл..., so we already know the subject is I. The next verbs naturally keep the same subject:

• Я вошёл
• (я) повесил
• (я) поставил

Repeating я before every verb would usually sound unnecessary unless you wanted emphasis or contrast.

This is very normal in Russian narrative style.

In Russian past tense, verbs agree with the subject in gender and number.

Here the speaker is grammatically masculine, so the past forms are:

• вошёл
• повесил
• поставил

If the speaker were female, they would be:

• вошла
• повесила
• поставила

If the subject were plural:

• вошли
• повесили
• поставили

So this sentence tells you that the speaker is male, or at least is being referred to with masculine verb forms.

Заодно means something like:

• at the same time
• while I was at it
• in addition
• also, as part of the same routine

In this sentence, it connects the last action to the previous ones in a natural everyday way:

• entered the apartment
• hung up the jacket
• and while at it put the kettle on

So и заодно поставил чайник is very close to:

• and also put the kettle on
• and while I was at it, put the kettle on

Literally, поставить чайник means to set/place the kettle.

But in everyday Russian, this often means to put the kettle on, that is, to set it to boil water for tea.

So this is a good example where the most natural English translation is slightly less literal.

• literal: placed the kettle
• natural: put the kettle on

The exact implication depends on context, but in normal domestic situations it usually means the speaker started the process of making tea or boiling water.

Because the sentence describes a chain of completed actions.

• вошёл = entered
• повесил = hung up
• поставил = put on / set

Perfective verbs are commonly used in narration when events happen one after another and each action is seen as completed.

If you used imperfective verbs instead, the focus would shift more toward process, background, repetition, or incompleteness.

For example, this sentence is basically a short sequence: I came in, hung up my jacket, and put the kettle on.

That strongly favors perfective aspect.

The word order is very natural and neutral for Russian storytelling.

• Я вошёл в квартиру = first action
• привычно повесил куртку = second action, with привычно describing how
• и заодно поставил чайник = third action, linked with и and modified by заодно

Russian word order is flexible, but this order sounds smooth because it follows the order of real-life events.

You could move some words around for emphasis, but the given sentence is the most straightforward and natural version.

The comma separates the first completed action from the next part of the sentence.

Russian often uses commas between parts of a sentence when actions are listed, especially when the structure is slightly expanded rather than just being a very tight pair of verbs.

Here the sentence has three coordinated actions:

• Я вошёл в квартиру,
• привычно повесил куртку
• и заодно поставил чайник.

The comma helps the sentence read naturally and clearly.

Yes. Russian often leaves out possessives when they are obvious from context.

In English, we usually say:

• hung up my jacket

In Russian, if it is clearly the speaker’s own jacket, you normally just say:

• повесил куртку

Adding свою is possible, but it is often unnecessary:

• повесил свою куртку

That would sound more emphatic, as if you specifically want to stress that it was his own jacket, not someone else’s.