Teaching the Swahili Particle/Affix “NI” in English

In Swahili, the syllable “ni” is incredibly versatile. Depending on where it is placed in a sentence or word, it can function as a verb, a pronoun, a location marker, or a plural command.

Here are the 5 main grammatical uses of “NI” explained in English with clear examples and comparisons.

1. “NI” as the Copula Verb (To Be: Is / Are / Am)

When “ni” stands alone as a self-contained word, it functions as the present tense of the verb “to be” (is, are, am). It connects a subject to its identity, role, or description.

• Swahili: Juma ni mwalimu.
  • English: Juma is a teacher.
• Swahili: Sisi ni wanafunzi.
  • English: We are students.
• Swahili: Mimi ni mgonjwa.
  • English: I am sick.

2. “NI-” as a Subject Prefix (First Person Singular: I)

When “ni-“ is attached to the very beginning (prefix) of a verb, it represents the subject pronoun “I” (Mimi).

{Subject Prefix (ni-)} + {Tense Marker} + {Verb Root}

• Swahili:Ninasoma kitabu.
  • Breakdown: Ni (I) + na (present tense) + soma (read)
  • English: I am reading a book.
• Swahili:Nilikula chakula.
  • Breakdown: Ni (I) + li (past tense) + kula (eat)
  • English: I ate food.
• Swahili:Nitasafiri kesho.
  • Breakdown: Ni (I) + ta (future tense) + safiri (travel)
  • English: I will travel tomorrow.

3. “-NI” as a Locative Suffix (Location Marker: At / In / To / On)

When “-ni” is attached to the end (suffix) of a noun, it transforms that noun into a location. In English, this is equivalent to adding prepositions like to, at, in, or on.

• Swahili: Nyumba (House) – Nyumbani
  • English: At home / In the house
• Swahili: Shule (School) – Shuleni
  • English: At school / To school
• Swahili: Mto (River) – Mtoni
  • English: In the river / To the river

Note for Students: You do not add “-ni” to proper names of places (e.g., Nairobi, Tanzania) or some unique locative nouns (e.g., posta, hospitali).

4. “-NI” as a Plural Command Marker (Imperative Plural: You all / Y’all)

When giving a command or invitation to more than one person (plural “you”), you take the base verb and add “-ni” to the end (often changing the final “a” of the verb to “e”).

• Swahili: Soma! (Read! – to one person) – Someni!
  • English: Read! (You all / Y’all read!)
• Swahili: Karibu! (Welcome! – to one person) – Karibuni!
  • English: Welcome, everyone!
• Swahili: Nenda! (Go! – to one person) – Nendeni!
  • English: Go! (You all go!)

5. “-NI-” as an Object Infix (Me / To Me)

When “-ni-“ is placed inside a verb (after the tense marker but before the verb root), it acts as the object pronoun “me” or “to me”.

• Swahili: Alitaka kuniona.
  • Breakdown: A (He/She) + li (past) + taka (want) + ku (to) + ni (me) + ona (see)
  • English: He/She wanted to see me.
• Swahili: Ananipenda.
  • Breakdown: A (He/She) + na (present) + ni (me) + penda (love)
  • English: He/She loves me.

Summary Cheat Sheet for English Speakers

position of “ni”	grammatical role	English Equivalent	Quick Example
Standalone Word	Copula Verb	is / are / am	Kikapu ni kikubwa (The basket is big)
At the Beginning	Subject Prefix	I	Nitafika (I will arrive)
At the End (Noun)	Locative Suffix	at / in / to	Garini (In the car)
At the End (Verb)	Plural Command	you all (y’all)	Kuleni! (You all eat!)
In the Middle	Object Infix	me	Alitaka kunisaidia (He wanted to help me)