The Second Person Object Infix -ku-
Grammar Rule in 30 Seconds
The -ku- infix is used to indicate that the action of the verb is being done to 'you' (singular).
- Place -ku- directly before the verb root: Nakupenda (I love you).
- It only refers to the second person singular (one 'you').
- If the verb starts with a vowel, -ku- remains unchanged.
Present Tense Conjugation
| Subject | Tense | Object | Verb | Full Word |
|---|---|---|---|---|
|
Ni
|
na
|
ku
|
penda
|
Nakupenda
|
|
Ni
|
na
|
ku
|
ona
|
Nakuona
|
|
Ni
|
na
|
ku
|
saidia
|
Nakusaidia
|
|
Ni
|
na
|
ku
|
pa
|
Nakupa
|
|
Ni
|
na
|
ku
|
sikia
|
Nakusikia
|
|
Ni
|
na
|
ku
|
subiri
|
Nakusubiri
|
Meanings
The -ku- infix functions as the direct object marker for the second person singular pronoun 'wewe'. It is inserted into the verb structure to show that the action is directed toward the listener.
Direct Object
Targeting the second person singular as the recipient of the action.
“Nakusaidia (I am helping you).”
“Nakuona (I see you).”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
ni-na-ku-verb
|
Nakupenda
|
|
Negative
|
si-ku-verb-i
|
Sikupendi
|
|
Question
|
Je, ni-na-ku-verb?
|
Je, nakupenda?
|
|
Past
|
ni-li-ku-verb
|
Nilikupenda
|
|
Future
|
ni-ta-ku-verb
|
Nitakupenda
|
|
Imperative
|
Verb-a-ku
|
Nakupenda (not applicable)
|
Formalitätsspektrum
Nakupenda sana. (Romantic)
Nakupenda. (Romantic)
Nakupenda! (Romantic)
Nakupenda, mpenzi. (Romantic)
Singular vs Plural Object
Beispiele nach Niveau
Nakupenda.
I love you.
Nakuona.
I see you.
Nakupa.
I give you.
Nakusikia.
I hear you.
Nakusaidia kazi.
I am helping you with work.
Sikupendi.
I do not love you.
Nakusubiri hapa.
I am waiting for you here.
Nakupigia simu.
I am calling you.
Je, nakusumbua?
Am I bothering you?
Nakukumbuka sana.
I miss you very much.
Nakualika kwenye sherehe.
I am inviting you to the party.
Nakutafuta kila mahali.
I am looking for you everywhere.
Nakushauri uende nyumbani.
I advise you to go home.
Nakukataa ombi lako.
I am rejecting your request.
Nakutakia kila la kheri.
I wish you all the best.
Nakukumbusha kuhusu mkutano.
I am reminding you about the meeting.
Nakushangaa kwa ujasiri wako.
I am surprised by your courage.
Nakukabidhi jukumu hili.
I am entrusting this responsibility to you.
Nakuthamini kama rafiki.
I value you as a friend.
Nakuhakikishia kuwa yote ni sawa.
I assure you that everything is fine.
Nakudharau kwa matendo yako.
I despise you for your actions.
Nakukumbatia kwa upendo.
I embrace you with love.
Nakutabiria mema.
I predict good things for you.
Nakukiri kuwa wewe ni bora.
I acknowledge to you that you are the best.
Leicht verwechselbar
Both look like 'ku'.
Both are object markers.
Mixing up prefixes.
Häufige Fehler
Mimi nakupenda wewe
Nakupenda
Nakupenda wewe
Nakupenda
Naku penda
Nakupenda
Nakupenda ninyi
Nawapenda
Nakupenda-i
Sikupendi
Naku-penda
Nakupenda
Nakupenda yeye
Nampenda
Nakukula
Nakula
Nakupenda kwa wewe
Nakupenda
Nakupenda sana wewe
Nakupenda sana
Satzmuster
Ni-na-ku-___
Si-ku-___-i
Ni-li-ku-___
Ni-ta-ku-___
Real World Usage
Nakupenda ❤️
Nakuona!
Nakushukuru.
Nakusubiri hapa.
Nakupa pesa.
Nakusikia vizuri.
Check the count
Don't use pronouns
Negative forms
Be polite
Smart Tips
Always use -ku- inside the verb.
Switch -ku- to -wa-.
Change the final vowel to -i.
It's likely an infinitive, not an object.
Aussprache
Stress
Stress is always on the penultimate syllable.
Statement
Nakupenda ↘
Declarative
Question
Nakupenda? ↗
Interrogative
Einprägen
Eselsbrücke
Ku is for 'K-you'. Think of the K in 'K-you' to remember it targets one person.
Visuelle Assoziation
Imagine pointing your finger at one person. The finger shape looks like a K. That's your -ku-.
Rhyme
When you want to say 'you' to a friend, put -ku- in the middle until the end.
Story
Juma is writing a letter. He wants to say he loves his friend. He writes 'Nakupenda'. He realizes he is talking to one person, so he uses -ku-. If he were writing to his whole family, he would use -wa-.
Word Web
Herausforderung
Write 5 sentences using -ku- and read them aloud to a mirror.
Kulturelle Hinweise
Using -ku- is very common in daily life. It shows closeness.
Often used in Sheng (slang) mixed with English.
More formal usage is preferred in older generations.
The -ku- infix comes from Proto-Bantu *ku-.
Gesprächseinstiege
Nakusaidia nini?
Nakuona wapi?
Nakusubiri saa ngapi?
Nakushauri nini kuhusu kazi?
Tagebuch-Impulse
Häufige Fehler
Test Yourself
Ni___penda (I love you)
Which is correct?
Find and fix the mistake:
Nakupenda ninyi
Nakupenda
-ku- is for plural objects.
A: Nakusaidia? B: ___
I / am / you / helping
Ni + na + ku + penda
Score: /8
Ubungsaufgaben
8 exercisesNi___penda (I love you)
Which is correct?
Find and fix the mistake:
Nakupenda ninyi
Nakupenda
-ku- is for plural objects.
A: Nakusaidia? B: ___
I / am / you / helping
Ni + na + ku + penda
Score: /8
FAQ (8)
It means 'you' (singular) as a direct object.
It goes after the tense marker and before the verb root.
No, use -wa- for plural.
Yes, whenever the object is 'you'.
Spanish uses separate words; Swahili uses infixes.
No, it is standard.
The -ku- remains the same.
Use 'si-' and end with '-i'.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Te
Spanish 'te' is a separate word; Swahili '-ku-' is an infix.
Te
French 'te' is a separate word; Swahili '-ku-' is an infix.
Dich
German uses a separate pronoun; Swahili uses an infix.
Anata o
Japanese uses particles; Swahili uses verb morphology.
Ka/Ki
Arabic uses suffixes; Swahili uses infixes.
Ni
Chinese has no verb conjugation; Swahili is highly agglutinative.
