bame gangajiga jakku jijeoseo jami an wayo.

밤에 means at night or in the night.

The particle 에 is often used with time expressions to mean at, on, or in:

• 아침에 = in the morning
• 저녁에 = in the evening
• 밤에 = at night

So 밤에 강아지가 자꾸 짖어서... means Because the dog keeps barking at night...

강아지가 uses the subject particle 이/가, which simply marks the puppy/dog as the subject of the barking.

So:

• 강아지가 짖어요 = The dog is barking

If you said 강아지는, it would sound more like as for the dog or would add contrast:

• 강아지는 자꾸 짖어요 = The dog, at least / as for the dog, keeps barking

In this sentence, 강아지가 sounds natural because the speaker is just stating the cause of the problem.

Both relate to dogs, but they are used a little differently:

• 강아지 = puppy, or a cute/pet dog
• 개 = dog in general

In everyday conversation, 강아지 often sounds softer, cuter, and more affectionate. Even when the animal is not literally a tiny puppy, people often use 강아지 for a pet dog.

So here, 강아지가 자꾸 짖어서 feels natural and conversational.

자꾸 means something like:

• repeatedly
• again and again
• keep on
• constantly (depending on context)

So 강아지가 자꾸 짖어요 means:

• The dog keeps barking
• The dog barks again and again

It often suggests that the repeated action is noticeable, annoying, or unwanted.

Yes. 짖다 means to bark, and it is used for dogs.

Examples:

• 개가 짖어요. = The dog barks / is barking.
• 강아지가 밤에 짖어요. = The dog barks at night.

You would not normally use 짖다 for humans or for most other animal sounds. Korean has different verbs for different animal sounds.

짖어서 is 짖다 + -어서, which connects two clauses and often gives a reason or cause.

So:

• 짖다 = to bark
• 짖어서 = because it barks / because it is barking

In this sentence:

• 강아지가 자꾸 짖어서 잠이 안 와요 = Because the dog keeps barking, I can’t fall asleep

A very common pattern is:

A-아서/어서 B = Because A, B or = A, and then B

Here it clearly expresses cause.

Because the expression is 잠이 오다, literally sleep comes.

So:

• 잠이 와요 = I feel sleepy / sleep is coming
• 잠이 안 와요 = Sleep won’t come / I can’t fall asleep

In this expression, 잠 takes the subject particle 이/가, not the object particle 을/를.

That is why 잠이 안 와요 is correct, while 잠을 안 와요 is not.

This is just a natural Korean way to express sleepiness or inability to fall asleep.

Korean often uses expressions that are different from English:

• 잠이 와요 = I’m sleepy
• 잠이 안 와요 = I can’t fall asleep / I’m not getting sleepy

So even though the literal wording is sleep doesn’t come, the natural English meaning is:

• I can’t sleep
• I can’t fall asleep

This is a very common expression, so it is worth learning as a chunk: 잠이 오다.

They are similar, but not exactly the same.

• 잠이 안 와요 = I can’t fall asleep / sleep won’t come
• 못 자요 = I can’t sleep

잠이 안 와요 focuses on not becoming sleepy or not being able to drift off.
못 자요 is broader and can mean you are unable to sleep for any reason.

In this sentence, 잠이 안 와요 fits very well because the dog’s barking is preventing the speaker from falling asleep.

안 is the common adverb used to make a verb negative.

So:

• 와요 = comes
• 안 와요 = does not come

With 잠이 오다, this becomes:

• 잠이 와요 = sleep comes / I’m sleepy
• 잠이 안 와요 = sleep doesn’t come / I can’t fall asleep

This is one of the most basic and common ways to negate a verb in Korean.

와요 is in the polite informal style, often called 해요체. It is very common in everyday conversation.

So the whole sentence is polite and natural for normal speech:

• to someone you do not want to sound too casual with
• in everyday conversation
• in many textbook examples

Less polite casual form:

• 밤에 강아지가 자꾸 짖어서 잠이 안 와.

More formal form:

• 밤에 강아지가 자꾸 짖어서 잠이 안 옵니다.

Korean often puts the reason before the result.

So the structure is:

밤에 강아지가 자꾸 짖어서
잠이 안 와요

Literally:

• Because the dog keeps barking at night, sleep doesn’t come

This is very natural in Korean. English can do the same:

• Because the dog keeps barking at night, I can’t sleep or
• I can’t sleep because the dog keeps barking at night

Both are fine in English, but Korean often prefers the reason first when using -아서/어서.

It usually suggests a current or ongoing situation, but not necessarily only this exact second.

Because of 자꾸 and the present-form verbs, the feeling is:

• the dog keeps barking
• this happens repeatedly
• as a result, the speaker cannot sleep

So it sounds like an ongoing problem, especially during the night, rather than one single bark.