Dada yangu alinunua shuka mpya na pazia refu ili apambe chumba chake cha kulala.

Alinunua can be broken down as:

• a- = he/she
• -li- = past tense
• nunua = buy

So alinunua means he/she bought.

In this sentence, the subject is dada yangu (my sister), so alinunua means my sister bought.

In Swahili, possessives usually come after the noun.

So:

• dada yangu = my sister
• literally: sister my

This is the normal word order in Swahili:

• kitabu changu = my book
• rafiki yangu = my friend
• chumba changu = my room

Here, shuka means a bedsheet or sheet.

Depending on context, shuka can sometimes refer to cloth or a wrap, but in a bedroom-related sentence like this, it is naturally understood as a bedsheet.

So shuka mpya = a new bedsheet.

Swahili adjectives agree with the noun class of the noun they describe.

Shuka belongs to a noun class where the adjective -pya appears as mpya.

So:

• shuka mpya = new bedsheet
• nguo mpya = new clothes/cloth
• nyumba mpya = new house

This is normal agreement for that noun class.

Because pazia belongs to a different noun class from nouns like mtu.

The adjective stem is -refu (long/tall), but the form changes according to noun class:

• mtu mrefu = a tall person
• pazia refu = a long curtain
• mapazia marefu = long curtains

So refu is the correct agreement form for pazia.

Yes. Na can mean both and and with, depending on context.

In this sentence:

• shuka mpya na pazia refu

it means and, because it is joining two things that were bought:

• a new bedsheet and a long curtain

Examples:

• chai na mkate = tea and bread
• ninakuja na rafiki yangu = I am coming with my friend

So the meaning of na depends on how it is used in the sentence.

Ili means so that or in order to.

It introduces a purpose clause — it tells us why she bought those things.

So:

• alinunua shuka mpya na pazia refu ili apambe chumba chake cha kulala
• she bought a new bedsheet and a long curtain in order to decorate her bedroom

After ili (so that / in order to), Swahili normally uses the subjunctive form of the verb.

So:

• a- = he/she
• pamb- = verb root from kupamba (to decorate/adorn)
• -e = subjunctive ending

That gives apambe = that she decorate / so that she may decorate

This is why you do not use the normal present or past here.

Compare:

• anapamba = she is decorating / she decorates
• alipamba = she decorated
• apambe = so that she may decorate

Kupamba means to decorate, to adorn, or to beautify.

In this sentence, it means to decorate a room.

Related uses:

• kupamba nyumba = to decorate a house
• kupamba meza = to decorate a table
• kupamba chumba = to decorate a room

Chumba means room, and it belongs to a noun class that uses the possessive agreement form cha-.

So:

• chumba chake = her room
• literally: room her

The -ke part means his/her, and the cha- part agrees with chumba.

Compare:

• kitabu chake = his/her book
• kiti chake = his/her chair
• chumba chake = his/her room

So the form of the possessive changes to match the noun class of the thing possessed.

This is a very common structure in Swahili.

• chumba chake = her room
• cha kulala = for sleeping / of sleeping

So:

• chumba chake cha kulala means
• her sleeping room
• more naturally in English: her bedroom

The second cha is a connector that links chumba with kulala (to sleep).

This pattern is very common:

• chumba cha kulala = bedroom
• chumba cha wageni = guest room
• meza ya kula = dining table
• maji ya kunywa = drinking water

Because after structures like cha + infinitive, Swahili often uses the infinitive to express purpose or function.

So:

• cha kulala = for sleeping
• ya kunywa = for drinking
• wa kuchezea = for playing

Here, kulala is not functioning like a main verb in a full clause. It is more like sleeping in the phrase sleeping room, which English usually translates as bedroom.

Swahili does not normally use articles like a, an, or the.

So a noun like shuka can mean:

• a bedsheet
• the bedsheet
• sometimes just bedsheet

The exact meaning depends on context.

That is why:

• shuka mpya can mean a new bedsheet or the new bedsheet, depending on the situation.

In this sentence, English naturally translates it as a new bedsheet and a long curtain.

This is the normal and natural order:

• Dada yangu = subject
• alinunua = verb
• shuka mpya na pazia refu = objects
• ili apambe chumba chake cha kulala = purpose clause

So the sentence follows a common Swahili pattern:

Subject + Verb + Object + Purpose

Swahili does allow some word order variation for emphasis, but this version is the most straightforward and neutral.

The nouns and adjectives would usually change to plural forms.

For example:

• shuka mpya can stay shuka mpya in the plural, depending on usage
• pazia refu becomes mapazia marefu

So you could get something like:

• Dada yangu alinunua shuka mpya na mapazia marefu...
• My sister bought new bedsheets and long curtains...

Notice how pazia changes to mapazia, and refu changes to marefu to match it.

Usually dada means sister, but it can also be used as a respectful way to address or refer to a woman, somewhat like sister in English in certain contexts.

Depending on context, dada yangu most naturally means my sister, which is the best reading in this sentence.

A few important grammar points come together here:

1. Past tense verb

   • alinunua = she bought

2. Possessive after the noun

   • dada yangu = my sister

3. Adjective agreement

   • shuka mpya
   • pazia refu

4. Purpose with ili + subjunctive

   • ili apambe = in order to decorate

5. Noun + connector + infinitive

   • chumba cha kulala = bedroom

So this is a very useful sentence for seeing how Swahili combines tense, agreement, possession, and purpose in one natural example.