Mti ule ni mkubwa.

In Swahili, the noun usually comes first, and words that describe or point to it usually come after it.

So:

• mti ule = that tree
• literally, it is closer to tree that

This is a very common pattern in Swahili:

• mtoto huyo = that child
• kitabu hiki = this book
• nyumba kubwa = big house

So mti ule is normal Swahili word order.

Swahili words like this and that have to agree with the noun class of the noun.

mti belongs to the m-/mi- class:

• singular: mti = tree
• plural: miti = trees

Because mti is singular in that noun class, the matching demonstrative is ule.

So:

• mti ule = that tree
• miti ile = those trees

A learner coming from English often expects one word for that, but in Swahili the form changes depending on the noun class.

ni is the copula here, meaning is / are / am.

So:

• Mti ule ni mkubwa.
• literally: That tree is big.

In this kind of sentence, ni links the subject and the description.

You can think of the pattern as:

• noun phrase + ni + description

Examples:

• Mtoto huyo ni mdogo. = That child is small.
• Nyumba ile ni kubwa. = That house is big.

Unlike English, ni does not change for person or number in this use.

Because adjectives in Swahili often agree with the noun class of the noun they describe.

The basic adjective idea is -kubwa = big, large.

With mti (singular, class m-/mi-), it becomes:

• m-kubwa → mkubwa

So:

• mti mkubwa = a big tree
• mti ule ni mkubwa = that tree is big

If the noun were plural, the adjective would change too:

• miti mikubwa = big trees
• Miti ile ni mikubwa. = Those trees are big.

This agreement is one of the most important parts of Swahili grammar.

Not exactly.

• mti mkubwa = a big tree / the big tree
• mti ule ni mkubwa = that tree is big

The first is a noun phrase: it names something. The second is a full sentence: it says something about the tree.

So:

• mti mkubwa = big tree
• mti ule ni mkubwa = that tree is big

English learners often confuse these because both contain the idea of tree and big, but the grammar is different.

In standard beginner-level Swahili, for this kind of sentence, you should keep ni:

• Mti ule ni mkubwa.

If you remove ni:

• mti ule mkubwa

that usually sounds more like a noun phrase, such as that big tree, rather than a complete statement.

So if you want to say That tree is big, use ni.

No, Swahili does not use articles the way English does.

So mti can mean:

• a tree
• the tree

The exact meaning depends on context.

If you want to be more specific, Swahili often uses demonstratives like:

• huu = this
• ule = that

So:

• mti = a tree / the tree
• mti ule = that tree

This is why English speakers sometimes feel that something is missing, but in Swahili it is completely normal.

Swahili actually has more than one demonstrative distinction, not just a single that.

For class mti, common forms include:

• huu mti = this tree
• huo mti = that tree (nearer, or previously mentioned, depending on context)
• ule mti / mti ule = that tree over there / that specific tree

In your sentence, ule often gives a sense of something more clearly pointed out or farther away.

At an early stage, it is often enough to learn ule as that for this noun class, but later you will notice these finer distinctions.

The plural of mti is miti.

Because the noun changes class form in the plural, the other agreeing words change too:

• mti ule ni mkubwa = that tree is big
• miti ile ni mikubwa = those trees are big

Notice the changes:

• mti → miti
• ule → ile
• mkubwa → mikubwa

This is a good example of how Swahili agreement works across the whole sentence.

Yes, that is possible.

Both of these are understandable:

• Mti ule ni mkubwa
• Ule mti ni mkubwa

However, noun + demonstrative is a very common neutral order in Swahili, so mti ule is an especially useful pattern to learn.

If you are a beginner, it is safest to get comfortable first with:

• noun + demonstrative
• noun + adjective

For example:

• mtu huyo
• kitabu hiki
• mti mkubwa

These can feel unusual for English speakers, because Swahili allows combinations like mt- and mk- at the beginning of a syllable sequence.

A simple guide:

• mti sounds roughly like m-tee
• mkubwa sounds roughly like m-koo-bwa

A few tips:

• Say the m clearly at the beginning.
• In mti, don’t insert a strong vowel before the m.
• In mkubwa, the ku is pronounced, so it helps break things up: m-ku-bwa.

Also, Swahili vowels are usually very consistent:

• a as in father
• e as in bed but pure
• i as in machine
• o as in more but pure
• u as in rule

So the pronunciation is usually more regular than English spelling.

-kubwa often means big, large, or great, depending on context.

With mti, it most naturally means physically big:

• mti mkubwa = a big tree

But with other nouns, it can also mean things like:

• important
• major
• great
• old/elder in some contexts of status

For example:

• mtu mkubwa can mean an important person or a grown-up/adult, depending on context.

So in your sentence, with tree, the meaning is straightforwardly about size.