A2 Verb Conjugation 5 min read Medio

Plural Object Infixes: -tu-, -wa-, -wa-

Plural object infixes (-tu-, -wa-, -wa-) place the 'who' of the action directly inside the Swahili verb.
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Practícalo

Grammar Rule in 30 Seconds

When the object of your sentence is plural, insert the correct marker directly into the verb to show agreement.

  • Use -wa- for people (Class 1/2): Ninawaona (I see them).
  • Use -i- for plural things (Class 4/9): Niliinunua (I bought them).
  • Use -zi- for plural things (Class 10): Nazisoma (I am reading them).
Subject + Tense + Object Infix + Verb Root + Final Vowel

Overview

Ever felt like your Swahili sentences are missing a middle piece? In English, we put the object after the verb. We say He loves us. In Swahili, that us moves inside the verb itself.
This is called an object infix. For plural objects like us, you all, and them, we use -tu-, -wa-, and -wa-. It makes your speech faster and more fluid.
Instead of two separate words, you get one efficient power-verb. Think of it like a grammar shortcut on your phone. It saves you time and makes you sound much more natural.
Most learners find this tricky at first. But don't worry, even native speakers occasionally stumble when sentences get complex! Once you master this, you unlock the ability to talk about groups.
Whether you are ordering for friends or talking about your family, you need these.

How This Grammar Works

Swahili verbs are like Lego sets. You snap different pieces together to build a meaning. The object infix is a specific block.
It always sits right before the verb root. It never moves to the start or the end. It stays tucked safely in the middle.
For plural objects, you have three main choices. Use -tu- when the action happens to us. Use -wa- when the action happens to you all. Use -wa- again when the action happens to them. Yes, the last two look identical! It is like a twin situation where context tells them apart.
Usually, the rest of the sentence or the conversation topic clears it up. If you are pointing at a group of people, -wa- clearly means them.

Formation Pattern

1
Building these verbs follows a strict, predictable sequence. Follow these steps to build your verb correctly:
2
Start with the Subject Prefix (who is doing the action).
3
Add the Tense Marker (when is it happening).
4
Insert the Object Infix (who is receiving the action).
5
Attach the Verb Root (the action itself).
6
Finish with the Verb Ending (usually -a).
7
Example: A-na-tu-penda (He-is-us-loving).
8
A- (He)
9
-na- (Present tense)
10
-tu- (Us)
11
-pend- (Love)
12
-a (Ending)
13
Think of the object infix as the passenger in a car. The subject is the driver. The tense is the engine. The infix just sits there and tells us who is being affected.

When To Use It

Use these infixes whenever the object of your sentence is a group of people. This is common in real-world scenarios like job interviews. For example,
The manager will hire us
becomes Meneja atatuajiri.
It is also vital when ordering food. If you want the waiter to bring the group drinks, you say Utatuletea vinywaji? (Will you bring us drinks?). You also use them for emphasis.
Even if you say the names of the people, the infix often stays. Ninawaona Juma na Mary (I see them, Juma and Mary). It acts like a pointer, making sure the listener knows exactly who you are talking about.
It’s like a grammar traffic light, directing the flow of the action toward the right people.

When Not To Use It

Don't use these for non-living objects in other noun classes. These specific infixes (-tu-, -wa-, -wa-) are mostly for people (the M/WA class). If you are talking about seeing several books, you wouldn't use -wa-.
You would use -ya- or -zi- depending on the noun class. Also, avoid using them if the object is indefinite or general. If you are just saying I like people, you don't necessarily need an infix.
The infix is for specific groups. Think of it like the difference between I like people and
I like those people.
If you can point at them, you probably need the infix. Using it for general things makes you sound a bit robotic.
Keep it for specific humans to stay safe.

Common Mistakes

Mixing up the two -wa- infixes is the biggest trap. One -wa- is for you all (2nd person plural). The other is for them (3rd person plural). How do you tell them apart? Often, for you all, Swahili speakers add -eni at the end of the verb. Nitawapigeni (I will hit you all) vs Nitawapiga (I will hit them). Another mistake is putting the infix in the wrong spot. Never put it before the tense marker. It is not Nitu-na-penda; it must be Ninatu-penda. It’s like putting your socks over your shoes. It just doesn't work. Lastly, don't forget the infix when the object is a person. Leaving it out makes the sentence feel naked to a native speaker.

Contrast With Similar Patterns

Contrast these with singular object infixes. For me, you use -ni-. For you (singular), you use -ku-. For him/her, you use -m-.
  • Singular: Ananipenda (He loves me).
  • Plural: Anatupenda (He loves us).
Notice how the structure stays identical. Only the tiny middle piece changes. It is also different from subject prefixes.
Subject prefixes start the verb. Object infixes stay in the middle. For example, in Tunawapenda, the Tu- at the start means We, and the -wa- in the middle means them. We love them.
If you swap them, the whole meaning flips! It is a small change with a massive impact on who is doing what to whom.

Quick FAQ

Q

Can I use -wa- for animals?

Yes! Animals often follow the human noun class rules in Swahili.

Q

Does the tense change the infix?

No, the infix stays the same whether it’s past, present, or future.

Q

Is -tu- always us?

Yes, in the object position, -tu- is always your team.

Q

Why does -wa- mean two things?

Language is funny like that. Context is your best friend here.

Q

Do I use this in every sentence?

Only when there is a specific plural object receiving the action. If you're just saying We are eating, you don't need one. But if you're saying

We are eating them (the fish),
then you do!

Plural Object Infix Table

Class Infix Example Meaning
2 (People)
-wa-
Ninawaona
I see them
4 (Trees/Plants)
-i-
Naiyona
I see them
6 (Eggs/Water)
-ya-
Nayayaona
I see them
8 (Things)
-vi-
Naviona
I see them
10 (General Plural)
-zi-
Naziona
I see them

Meanings

These infixes act as pronouns inside the verb, replacing the need to repeat the object noun.

1

Human Plural

Refers to multiple people (Class 2).

“Ninawapenda (I love them)”

“Anawasaidia (He helps them)”

2

Non-Human Plural

Refers to plural objects (Classes 4, 6, 8, 10).

“Nimeinunua (I have bought them - e.g., trees)”

“Nazitaka (I want them - e.g., houses)”

Reference Table

Reference table for Plural Object Infixes: -tu-, -wa-, -wa-
Form Structure Example
Affirmative
Subj + Tense + Infix + Root
Ninawaona
Negative
NegSubj + Infix + Root + i
Siwaoni
Question
Je + Subj + Tense + Infix + Root
Je, unawaona?
Past
Subj + li + Infix + Root
Niliwaona
Future
Subj + ta + Infix + Root
Nitawaona

Espectro de formalidad

Formal
Ninawaona.

Ninawaona. (Meeting friends)

Neutral
Ninawaona.

Ninawaona. (Meeting friends)

Informal
Nawaona.

Nawaona. (Meeting friends)

Jerga
Nawaona hao.

Nawaona hao. (Meeting friends)

Object Infix Map

Verb

People

  • -wa- them

Things

  • -zi- them
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Ejemplos por nivel

1

Ninawaona.

I see them.

2

Nazitaka.

I want them.

1

Anawasaidia wageni.

He helps the guests.

2

Nimeiyapenda.

I have liked them.

1

Wameziandika barua.

They have written the letters.

2

Tunawauliza maswali.

We are asking them questions.

1

Nitazisoma vitabu hivi.

I will read these books.

2

Aliwatafuta watoto.

He looked for the children.

1

Umeziweka wapi funguo?

Where did you put the keys?

2

Tutawakaribisha wageni.

We will welcome the guests.

1

Ameziainisha makosa yote.

He has categorized all the mistakes.

2

Tunawaheshimu wazee.

We respect the elders.

Fácil de confundir

Plural Object Infixes: -tu-, -wa-, -wa- vs Subject Prefixes

Both use similar sounds.

Errores comunes

✗

Niona wao

✓

Ninawaona

Don't use pronouns after the verb.
✗

Ninawaona vitabu

✓

Naziona vitabu

Wrong class marker for things.
✗

Ninaziona watu

✓

Ninawaona watu

Wrong class marker for people.
✗

Nitaona wao

✓

Nitawaona

Infix is required.
✗

Nimeona wao

✓

Nimewaona

Infix must be inside.

Patrones de oraciones

Ni___ona.

Real World Usage

Texting constant

Nimeziona!

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💡

Check the Class

Always identify the noun class first.

Smart Tips

Use the infix to be faster.

Ninaona watu. → Ninawaona.

Pronunciación

ni-na-WA-o-na

Infix stress

The infix is unstressed; stress the root.

Question

Unawaona? ↑

Rising intonation for yes/no questions

Memorízalo

Mnemotecnia

WA is for Who (people), ZI is for Zings (things).

Asociación visual

Imagine a tiny person inside a verb box labeled 'WA' and a pile of books inside a box labeled 'ZI'.

Rhyme

For people use WA, for things use ZI, it's easy to learn, just give it a try!

Story

I went to the market. I saw my friends (Ninawaona). I bought many apples (Nazitaka). I ate them all (Nazikula).

Word Web

NinawaonaNazisomaTunawapendaWameziandikaNitawasaidia

Desafío

Write 5 sentences about your friends and 5 about your favorite books using infixes.

Notas culturales

Infixes are used heavily in daily speech to sound natural.

Bantu language noun class system.

Inicios de conversación

“

Unawaona marafiki zako?

Temas para diario

Describe your friends.

Errores comunes

Incorrect

Correcto

Incorrect

Correcto

Incorrect

Correcto

Incorrect

Correcto

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Test Yourself

Fill in the blank.

Ni___ona (them-people).

✓ Correct! ✗ Not quite. Correct answer: wa
wa is for people.

Score: /1

Ejercicios de practica

1 exercises
Fill in the blank.

Ni___ona (them-people).

✓ Correct! ✗ Not quite. Correct answer: wa
wa is for people.

Score: /1

Preguntas frecuentes (1)

Only if you want to sound like a beginner.

Scaffolded Practice

1

1

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

Spanish high

Clitic pronouns

Swahili infixes are inside the verb, Spanish clitics are separate words.

French moderate

Object pronouns

Swahili infixes are mandatory for agreement.

German low

Cases

Swahili uses prefixes/infixes, not cases.

Japanese low

Particles

Swahili integrates the object into the verb.

Arabic unknown

Suffixes

Swahili uses infixes, Arabic uses suffixes.

Learning Path

Prerequisites

Previous
Noun Class M-MI: Agreement for Trees and Nature
Next
Demonstratives of Proximity (huyu, hiki, huu)

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The Prefix 'A-' for Humans
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