Class 4 iki- ibi-
Vocabulary
| ikintu - thing | igihugu - country |
| ikijumba - sweet potato | igitabo - book |
| ikirenge - foot | igiti - tree |
20. Class 4.
| Singular | Plural | |
| Noun prefix | iki- | ibi- |
| Possessive prefix | cya- | bya- (cyanje, byanje) |
| Verb prefix | ki- | bi- (kiri, biri) |
| Adjective prefix | ki- | bi- (kibi, bibi) |
21. Change-down rule. When the stem of a word begins with certain letters, k in the prefix must change to g, and t in a prefix must change to d. These are the letters which cause this change: C, F, H, K, , S, T. (Maybe you can make up a nonsense sentence using these letters to help yu remember them, such as: Charlie found his kite pulling a string tail.)
So it is not: ikitabo, but igitabo, since the stem -tabo begins with t. Not ikihugh, but igihugh, since the stem begins with h.
This rule is very important and is regularly applied, so learn it well. Note, however, that it does not apply to a k or t preceded by a consonant, e.g. ntukora. And it does not apply if the vowel between the k or t and the succeeding consonant is long, e.g. atihana (not, adihana).
Exercises:
I. Translate into English:
II. Translate into Kinyarwanda: