Ufanisi umeongezeka.

Because Swahili verbs usually pack several pieces of grammar into a single word.

umeongezeka can be broken down as:

• u- = subject marker, agreeing with ufanisi
• -me- = perfect marker, often like has/have
• -ongezeka = increase / become greater

So instead of using separate helper words like English does, Swahili builds them into the verb.

-me- marks the perfect. In many cases, it corresponds to English has/have + past participle.

So umeongezeka is often understood like has increased rather than just increased.

This tense/aspect is commonly used when:

• something happened already, and
• the result is relevant now

A useful comparison:

• ufanisi umeongezeka = efficiency has increased
• ufanisi uliongezeka = efficiency increased / did increase

That u- is the subject marker on the verb. It agrees with the noun ufanisi.

Ufanisi is an abstract noun with the u- prefix, and nouns of this type typically take u- agreement on the verb.

So:

• ufanisi → subject agreement u-
• u-me-ongezeka → has increased

This is noun-class agreement, which is a major part of Swahili grammar.

They are related through noun-class grammar, but they are not doing the same job.

• In ufanisi, u- is part of the noun itself
• In umeongezeka, u- is the subject marker on the verb

So they match each other, but one belongs to the noun and the other shows agreement on the verb.

The dictionary form is kuongezeka.

In Swahili, verbs are usually listed with ku-, which is the infinitive marker, similar to English to in to increase.

So:

• kuongezeka = to increase / to become greater
• umeongezeka = it has increased

When the verb is conjugated in a sentence, the ku- normally disappears and other prefixes are added.

This is a very common question.

• kuongezeka = to increase, to become greater
  
  • usually intransitive
• kuongeza = to increase something, to add
  
  • usually transitive

In this sentence, kuongezeka is correct because ufanisi is the thing that has increased.

Examples:

• Ufanisi umeongezeka. = Efficiency has increased.
• Tumeongeza ufanisi. = We have increased efficiency.

So -ongezeka is more like go up / become more, while -ongeza is more like raise / increase something.

Usually, ufanisi is treated as an abstract noun, and abstract nouns in Swahili often do not have an ordinary plural.

It works a lot like English words such as efficiency, progress, or success when used in a general abstract sense.

So learners normally use ufanisi as it is, without worrying about a plural form.

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

So ufanisi can mean:

• efficiency
• the efficiency
• sometimes an efficiency-related idea, depending on context

The context tells you how definite or specific the noun is.

That means a short sentence like Ufanisi umeongezeka is perfectly normal without any article.

Yes, if the context already makes the subject clear.

Swahili often allows the noun to be omitted because the verb already contains a subject marker.

However, in isolation, umeongezeka can be unclear, because u- can also look like the marker for you in some contexts. So if you say only umeongezeka, the listener depends more heavily on context to know what has increased.

Including ufanisi makes the sentence much clearer.

A helpful syllable breakdown is:

• u-fa-ni-si
• u-me-o-nge-ze-ka

A few pronunciation tips:

• Every vowel is pronounced clearly: u, a, i, i / u, e, o, e, e, a
• Swahili spelling is quite regular, so you usually say what you see
• Stress normally falls on the second-to-last syllable of each word:
  • ufanisi
  • umeongezeka

So a natural pronunciation is roughly:

ufaNIsi umeongeZEka

By itself, in some contexts, a form beginning with u- could refer to you. So yes, in isolation, a learner might wonder about that.

But in Ufanisi umeongezeka, the presence of ufanisi makes it clear that the verb is agreeing with that noun, not addressing you.

So in this sentence, u- is understood as noun-class agreement, not second-person singular.

Yes. Ufanisi umeongezeka follows the normal and most natural Swahili pattern:

• subject: ufanisi
• verb: umeongezeka

That is the standard way to say it.

Because Swahili marks agreement on the verb, word order can sometimes be more flexible than in English, but for learners, subject + verb is the best default pattern here.