The suffixes -kan and -i are used to further specify the relationship between the subject and the object in a sentence. Therefore, the verbs become TRANSITIVE (needs object)
There are a few explanations:
- The suffix -kan usually implies a causative relationship or a transfer of possession.
- Typically, with a “-kan” verb: the Undergoer moves from one place to another, while it is caused to do or used to do the action.
- The suffix -i indicates that the action directly benefits or affects the object.
- Typically, with an “-i” verb: the Undergoer stays where it is, while the action is directed towards it.
| Root Word | |||
| ajar | Mengajar | Saya mengajar bahasa Indonesia | |
| Mengajarkan | Saya mengajarkan bahasa Indonesia kepada murid-murid di Australia | Mengajarkan (something) to (someone). | |
| Mengajari | Saya mengajari murid-murid di Australia bahasa Indonesia | Mengajari (someone) to do (something). | |
| masuk | Memasuk | There’s no such verb | |
| Memasukkan | Ari memasukkan koin. | Ali inserted a coin. The coin moves, when Ari inserts it. | |
| Memasuki | Ari memasuki mesjid. | Ari entered the mosque. The mosque stays where it is, while Ari enters it. |