אני לא כועסת עכשיו, כי הבית שקט.

Because כועסת is the feminine singular form.

In this sentence, the speaker is female, so she says:

• אני לא כועסת עכשיו = I am not angry now

A male speaker would say:

• אני לא כועס עכשיו

In Hebrew, words like angry often agree with the gender of the person they describe.

It behaves a bit like both, which is very common in Hebrew.

In sentences like this, כועסת is the present-tense form of the verb לכעוס = to be angry / to get angry, but present-tense forms in Hebrew also work very much like adjectives.

So אני לא כועסת is literally something like:

• I not angry

But in natural English, that becomes:

• I am not angry

Hebrew usually does not use a separate word for am / is / are in the present tense.

Because in present-tense Hebrew, the verb to be is usually omitted.

So:

• אני כועסת literally looks like I angry
• but it means I am angry

Likewise:

• הבית שקט literally looks like the house quiet
• but it means the house is quiet

This is one of the biggest differences from English.

לא means not.

It usually goes directly before the word or phrase being negated. Here:

• אני לא כועסת עכשיו
• I am not angry now

So לא comes before כועסת.

A few more examples:

• אני לא עייפה = I am not tired
• הוא לא בבית = He is not at home

Yes, Hebrew can sometimes drop subject pronouns, because the verb form often shows who the subject is.

So you may hear:

• לא כועסת עכשיו = Not angry now / I’m not angry now

But אני is very natural and often included for clarity, emphasis, or normal conversational rhythm.

So:

• אני לא כועסת עכשיו and
• לא כועסת עכשיו

can both work, depending on context.

Because that is a very natural word order in Hebrew.

• אני לא כועסת עכשיו = I’m not angry now

The adverb עכשיו = now often comes after the main descriptive word, but Hebrew word order is somewhat flexible.

You could also hear:

• עכשיו אני לא כועסת

That changes the emphasis a little:

• Right now, I’m not angry

So the original sentence sounds neutral and natural.

Yes. כי is a very common word meaning because.

So:

• כי הבית שקט = because the house is quiet

It introduces a full clause, just like English because.

Compare:

• אני שמחה כי הוא כאן = I’m happy because he is here
• אני לא כועסת כי הבית שקט = I’m not angry because the house is quiet

Because הבית means the house, while בית means a house / house depending on context.

The prefix ה־ is the Hebrew definite article, equivalent to English the.

So:

• בית = house
• הבית = the house

In your sentence, it is a specific house, so Hebrew uses הבית.

Because הבית is a masculine singular noun.

Hebrew adjectives usually agree with the noun they describe in gender and number:

• masculine singular: שקט
• feminine singular: שקטה
• masculine plural: שקטים
• feminine plural: שקטות

Since בית is masculine singular, the correct form is:

• הבית שקט = the house is quiet

If the noun were feminine, for example הדירה (the apartment), you would say:

• הדירה שקטה

It is simply describing the house as quiet.

In Hebrew, שקט can describe a place, a room, a street, a child, a situation, and so on. So:

• הבית שקט = the house is quiet
• more naturally in some contexts: the house is peaceful / calm / quiet

It does not sound strange in Hebrew.

A male speaker would say:

• אני לא כועס עכשיו, כי הבית שקט.

The only change is:

• כועסת → כועס

Everything else stays the same.

The basic meaning is simply:

• I’m not angry now, because the house is quiet.

The word עכשיו means now / right now. Depending on context, English might sometimes translate the idea as:

• I’m not angry anymore, because the house is quiet

But Hebrew does not explicitly say anymore here. If the speaker specifically wanted to stress no longer, they might use other wording.

So עכשיו mainly gives a present-time frame.

A simple pronunciation guide is:

• Ani lo ko-eset akhshav, ki habayit shaket.

A few notes:

• אני = a-NI
• כועסת = roughly ko-E-set
  The ו here helps create the o sound.
• עכשיו = akh-SHAV
• הבית = ha-BA-yit
• שקט = SHA-ket or sha-KET, depending on accent and speech style, though sha-KET is a helpful learner pronunciation

If you want, a very smooth natural reading is:

• Ani lo ko-eset akhshav, ki habayit shaket.

In modern Hebrew writing, punctuation can be a bit flexible, especially in short sentences.

So both of these may appear:

• אני לא כועסת עכשיו, כי הבית שקט.
• אני לא כועסת עכשיו כי הבית שקט.

The comma can help readability, especially for learners, but in everyday writing people often omit it in short, simple sentences.