Kiyoyozi kipo chumbani, lakini miwani yangu imo kwenye droo.

In this sentence, kipo and imo already do the job of is/are plus location.

Swahili often uses special locative copula forms for saying where something is:

• kipo = it is there / it is at
• imo = it is in there / they are in there

So you do not need an extra word like is or are.

Because kiyoyozi belongs to the ki-/vi- noun class, often called class 7/8.

The word kipo is made of:

• ki- = the agreement prefix for this noun class
• -po = a locative element meaning roughly there / at that place

So kiyoyozi kipo chumbani literally works like the air conditioner it-is-there in-the-room.

The important point is that the verb form must agree with the noun class of kiyoyozi.

Because miwani takes a different agreement pattern from kiyoyozi.

Here, imo contains:

• i- = the agreement prefix used with the class of miwani
• -mo = a locative element often suggesting inside

So miwani yangu imo kwenye droo means my glasses are inside the drawer.

Swahili agreement changes depending on the noun, so different nouns often need different verb forms.

They are both locative forms, but they give slightly different spatial ideas.

• -po usually gives a more general sense of there / at that place
• -mo often suggests inside / within

So in this sentence:

• kipo chumbani = the air conditioner is in the room
• imo kwenye droo = the glasses are in the drawer, with a nice sense of being inside it

In real speech, these forms can overlap somewhat, and speakers do not always make a sharp distinction every time.

The ending -ni is a very common locative suffix in Swahili.

• chumba = room
• chumbani = in the room / at the room

So chumbani is not a different basic noun; it is the noun chumba with a location ending added.

This -ni ending is very common with places:

• nyumba → nyumbani = at home / in the house
• shule → shuleni = at school
• chumba → chumbani = in the room

Swahili has more than one way to express location.

With many nouns, especially in everyday speech, speakers often use forms like:

• kwenye droo = in the drawer
• ndani ya droo = inside the drawer
• katika droo = in the drawer

With a word like droo, kwenye droo sounds very natural.
By contrast, chumbani uses the -ni locative suffix directly.

So the sentence mixes two normal ways of expressing location:

• chumba → chumbani
• kwenye droo

Kwenye is a very common word meaning something like in, on, at, onto, depending on context.

Here, it means in:

• kwenye droo = in the drawer

It is extremely common in spoken and written Swahili for placing things somewhere.
The exact English translation depends on the situation:

• kwenye meza = on the table
• kwenye gari = in the car
• kwenye droo = in the drawer

So it is a flexible location word.

Because possessives in Swahili must also agree with the noun class.

The possessive stem is -angu = my, but the beginning changes to match the noun:

• kitabu changu = my book
• vitabu vyangu = my books
• miwani yangu = my glasses

So with miwani, the correct possessive form is yangu.

This agreement is one of the central features of Swahili grammar.

In normal use, miwani is usually treated like a plural-type noun, similar to how English uses glasses.

So even if you mean one pair of glasses, Swahili commonly says miwani and uses matching agreement such as:

• miwani yangu
• miwani imo
• miwani zangu would be wrong here if you are following the agreement pattern used in this sentence

For a learner, the safest approach is to memorize miwani as a noun that takes the agreement shown in examples like this one.

Lakini is the conjunction but.

It connects the two clauses:

• Kiyoyozi kipo chumbani
• lakini
• miwani yangu imo kwenye droo

So it works just like English but, showing contrast between the two pieces of information.

Often, yes. You will hear other locative forms such as -ko as well.

For example, many speakers would also say:

• Kiyoyozi kiko chumbani
• Miwani yangu iko kwenye droo

Very roughly:

• -ko = general location
• -po = there / at that place
• -mo = inside / within

In real-life Swahili, these can overlap a lot, and usage varies by speaker and region.
So the sentence you were given is correct, but it is not the only natural way to say it.

Because this sentence follows a very common Swahili pattern:

subject + agreeing verb + location

So:

• Kiyoyozi kipo chumbani
• Miwani yangu imo kwenye droo

That structure is very natural in Swahili and often feels comfortably familiar to English speakers. The main challenge is not the word order, but the agreement and the locative forms.