-i- (ngeli ya 4)
Class 4 Object -i-
The infix -i- is the object marker for Class 4 nouns, which are the plural counterparts to Class 3 (the m-/mi- class, like miti or mizigo). It translates to "them" for these inanimate objects and is placed directly before the verb root.
How It Works
Placement: The -i- marker sits in the object slot of the verb template. It comes immediately after any relative infix (if present) and always sits directly before the verb root (e.g., niliikata - I cut them).
Before Vowels: Learners often expect the -i- to glide into a "y" before vowels because Class 4 subject and possessive concords often do that before certain vowels (for example, i + a = ya, as in miti yangu). However, the Class 4 object marker -i- does not glide or disappear before vowel-initial verb roots. It remains a distinct -i- (e.g., aliiona - he saw them; aliiuza - he sold them).
Definiteness and Specificity: For inanimate classes like Class 4, omitting the object marker when the noun is explicitly mentioned usually makes it indefinite (e.g., nitapanda miti - I will plant trees). Including the -i- alongside the noun indicates definiteness or specificity (e.g., nitaipanda miti - I will plant the trees). It is also used when the object is moved to the front of the sentence for focus.
The Imperative Rule: Whenever you use an object marker with a command, the final vowel of Bantu-origin verbs ending in -a must change to -e. For example, kata (cut) becomes ikate (cut them). However, borrowed verbs ending in -i, -e, or -u do not change their final vowel. For instance, jaribu (try) becomes ijaribu (try them), not ijaribe.
Monosyllabic Verbs: When adding an object marker to short verbs that usually keep their infinitive ku- (like kula or kunywa), the ku- is dropped. This is because the object marker provides the necessary syllable for stress. For example, nitaila (I will eat them - e.g., mihogo), not nitaikula. In the imperative, it becomes ile! (eat them!), not ikule!. You can review this in Short Verbs with an Object Marker.
Symmetry and Look-Alikes: Because Class 4 is plural, learners often mistakenly try to use the Class 10 object marker -zi-. Remember that Class 4 uses -i-. Helpfully, this is identical to the Class 4 subject marker (e.g., miti ilianguka - the trees fell), as well as the singular Class 9 object marker.
Don't Confuse with the Relative Marker: Another common mistake is using the Class 4 relative marker -yo- in the object slot because learners are familiar with ya and yo in other Class 4 contexts. Remember that the object marker is always -i-.
The Same Verb, Different Nouns:
Miti? Niliiona means “The trees? I saw them.” Nyumba? Niliiona can mean “The house? I saw it.” The object marker -i- is shared by Class 4 and Class 9. The noun and discourse identify whether the reference is plural trees or a singular house.
Examples (4)
- Mizigo iko wapi? Niliiona ndani.
Where are the bags? I saw them inside.
Word by Word: Bags are where? I-past-them-see inside.
The object marker -i- refers back to "mizigo" (bags) and stays distinct before the vowel-initial root "-ona".
- Miti hii inakua haraka kwa sababu ninaimwagilia maji.
These trees are growing fast because I am watering them.
Word by Word: Trees these are-growing fast for reason I-present-them-water water.
Here, -i- acts as the pronoun "them" for the Class 4 noun "miti" (trees).
- Walimu walitoa mifano mizuri; tusiipuuze.
The teachers gave good examples; let's not ignore them.
Word by Word: Teachers they-past-give examples good; we-should-not-them-ignore.
The marker -i- refers to "mifano" (examples) and is placed right before the verb root "-puuza".
- Niliikata mikate yote.
I cut all the loaves of bread.
Word by Word: I-past-them-cut loaves-of-bread all.
Using the object marker alongside the explicit noun "mikate" adds strong focus or definiteness to the object.
Common Mistakes
Using the Class 10 object marker -zi- because the noun is plural.
Nilizinunua mikate.Niliinunua mikate.Learners often assume all plural inanimate nouns use -zi-. However, Class 4 (mi- nouns) specifically uses -i-, even though it is plural.
Dropping or gliding the -i- before a vowel-initial verb root.
Niliyona mioto.Niliiona mioto.Unlike some prefixes, the Class 4 object marker -i- does not glide to "y" or disappear before a vowel. It remains a distinct -i-.
How It Connects
Learn This First
To use the Class 4 object marker -i-, you must be able to identify Class 4 nouns (the plural of the M-MI class) and understand the standard position of object markers within the Swahili verb template.
- Classes 3 and 4
Learners must first understand the M-MI noun class system to identify which nouns are in Class 4 and thus require the -i- object marker.
Foundations - Object Agreement
This pattern is a specific application of the general rule for how object markers function within the Swahili verb.
Foundations - Verb Slot Order
Understanding the verb slot order is necessary to know exactly where to place the -i- object marker relative to the subject, tense, and root.
Foundations