Understood Objects

Level 5

In Swahili, when a direct object is already known from context, you can drop the noun completely. To maintain the specific meaning of "it" or "them," you must include the corresponding Object Marker (OM) on the verb.

How It Works

Understanding how to drop objects—often taught in textbooks through the use of Object Markers—is essential to become proficient in natural Swahili discourse. This pattern is ubiquitous across all registers.

1. Placement and Structure
The OM is a bound prefix that attaches immediately before the verb root, generally following the Verb Slot Order (note that relative infixes, if present, sit between the tense and the object marker). When used, it must agree in noun class and number with the object. While the OM is required when replacing an omitted object, it is not always mandatory when an inanimate object is explicitly stated in the sentence (when both are present, this is known as Object Doubling). Even in negative tenses, the OM remains locked immediately before the verb root (e.g., hakukisoma = "s/he did not read it"). The Reflexive ji- also occupies this exact same morphological slot, but it is invariable and never changes shape regardless of the person, number, or noun class of the subject.

2. Object Markers by Person and Class
For the 1st person, object markers are identical to affirmative subject markers: singular is -ni- and plural is -tu-. For the 2nd person, they differ from subject markers: singular is -ku- and plural is -wa- (alternatively, the plural can be formed by using -ku- or -wa- along with the plural suffix -ni, which changes the verb's final vowel to -e). For the 3rd person (Classes 1 and 2), the singular is -m- and plural is -wa-. For all other noun classes (inanimate objects), the object markers are identical to their respective subject prefixes (e.g., Class 7 -ki-, Class 8 -vi-, Class 9 -i-, Class 10 -zi-). It is especially important to distinguish the 2nd person singular object marker -ku- from the Infinitive ku- and the Past Negative -ku- (e.g., hakupiga = "he did not hit" vs. hakukupiga = "he did not hit you").

3. Phonological Rules

  • The Class 1 animate singular OM -m- becomes -mw- before vowel-initial verb roots (e.g., alimwona = "he saw him/her"). Before the vowel 'u', both -mu- and -mw- are standard and widely accepted (e.g., alimuuliza or alimwuliza = "he asked him/her").
  • The 2nd person singular OM -ku- becomes -kw- before a in forms such as -ambia (e.g., alikwambia = "he/she told you").
  • Like the corresponding verbal subject prefixes, inanimate object markers (such as -ki-, -vi-, -li-, -ya-) and others like -ni- generally retain their standard shape before vowel-initial verb roots to preserve syllable structure. For example, the Class 7 subject prefix remains ki- in kione, and the object marker likewise remains -ki- (e.g., nilikiona = "I saw it", not nilichona).
  • Monosyllabic verbs (like kula, kunywa) drop their stress-bearing infinitive -ku- prefix when an OM is inserted in Standard Swahili. The OM takes over the requirement to provide a penultimate syllable for stress (e.g., alikila). However, retaining the -ku- (e.g., alikikula) is highly common and widely accepted in Kenyan Swahili.

4. Topicality vs. Definiteness and Animacy
For animate objects (people and animals), Object Doubling is strictly mandatory in Standard Swahili. A sentence like Niliona mtoto is grammatically incorrect; it must be Nilimwona mtoto. For inanimate objects, many learners are taught that "definite inanimate objects must take an object marker." Linguistic research shows this is inaccurate. Definiteness alone does not trigger the OM; rather, it is topicality (information structure). A definite inanimate object can appear without an OM if it is not the current discourse topic.

5. Distinguishing from Relative Markers
Do not confuse OMs with relative infixes. While both agree with noun classes, relative markers usually follow the tense marker and translate to "which/that" (kitabu nilichosoma = "the book which I read"). The OM sits immediately before the root and translates to a direct pronoun (nilikisoma = "I read it").

6. Imperative Commands
When attaching an Object Marker to an affirmative command, Bantu verbs ending in -a take final -e in an object-marked imperative. For example, Soma! (Read!) becomes Kisome! (Read it!). However, Arabic-derived verbs ending in -e, -i, or -u (e.g., jibu, fikiri) do not change their final vowel (e.g., Kijibu! = "Answer it!").

The second-person object marker retains its vowel in alikuona (he/she saw you), alikuita (he/she called you) and alikuuliza (he/she asked you). The associative combination ki + a → cha does not predict a ch- verbal subject prefix before every vowel.

Examples (4)

  1. Kalamu yangu iko wapi? Niliiweka mezani.

    Where is my pen? I put it on the table.

    Word by Word: Pen my is where? I-past-it-put table-on.

    The Class 9 Object Marker '-i-' refers back to 'kalamu' (pen), allowing the noun to be dropped while maintaining specific reference.

  2. Wageni wamefika. Baba anawakaribisha.

    The guests have arrived. Father is welcoming them.

    Word by Word: Guests they-have-arrived. Father he-present-them-welcome.

    The Class 2 Object Marker '-wa-' acts as the pronoun 'them' for the understood animate object 'wageni'.

  3. Chakula kilikuwa kitamu sana, kwa hivyo nilikila chote.

    The food was very delicious, so I ate it all.

    Word by Word: Food it-past-be delicious very, for thus I-past-it-eat all.

    The Class 7 Object Marker '-ki-' refers to 'chakula'. Notice that the finite monosyllabic verb '-la' drops its infinitive 'ku-' because the OM provides the necessary syllable for stress.

  4. Ulimletea mwalimu kitabu? Ndiyo, nilimletea.

    Did you bring the teacher the book? Yes, I brought it to him.

    Word by Word: You-past-him-bring-for teacher book? Yes, I-past-him-bring-for.

    Even though 'kitabu' (the direct object) is dropped in the answer, the verb only takes the Class 1 Object Marker '-m-' for the animate recipient ('mwalimu'), following the single OM restriction for ditransitive verbs.

Common Mistakes

  • Overusing independent pronouns for objects.

    Wageni wamefika, ninawakaribisha wao.
    Wageni wamefika, ninawakaribisha.

    Advanced learners often redundantly use independent pronouns (like 'yeye' or 'wao') for objects instead of relying solely on the OM. Adding the independent pronoun sounds unnaturally emphatic or contrastive in Standard Swahili.

  • Failing to drop the infinitive '-ku-' on monosyllabic verbs when speaking Standard Swahili.

    Chakula ni kitamu, nilikikula.
    Chakula ni kitamu, nilikila.

    In Standard Swahili, when an Object Marker is added to a monosyllabic verb (like 'kula'), the infinitive '-ku-' must be dropped. While retaining it (e.g., 'nilikikula') is considered an error in strict Standard Swahili, it is highly common, natural, and widely accepted in Kenyan Swahili.

  • Omitting the Object Marker when referring to a specific inanimate topic.

    Kalamu iko wapi? Niliweka mezani.
    Kalamu iko wapi? Niliiweka mezani.

    If you establish a topic ('the pen') and then drop the object without using an OM, the verb becomes generic. 'Niliweka' means 'I put [something/generally]', whereas 'niliiweka' means 'I put it'.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

Understood ObjectsLevel 5

Learn This First

To understand null objects (understood objects), a learner must first be comfortable with the Swahili object marker system. Since the full noun phrase is omitted, the object marker on the verb (or the surrounding context) carries the burden of identifying the referent. Familiarity with how Swahili handles 'recoverable' information—similar to how subject pronouns are often dropped—is necessary to recognize when and why an object noun phrase can be left out.