-in
Suffix -in occurs with transitive verbs. Its functions are the same as the suffixes -kan and -i in formal Indonesian. It has causative meaning:
| Formal Form | Colloquial Form | Meaning |
| Tolong carikan saya pekerjaan. Bapak membelikan saya piano. Toto diajarkan orang tuanya untuk mandiri. |
Cariin gue kerjaan dong. Bapak beliin gue piano. Toto diajarin orang tuanya biar mandiri. |
Please find me a job. My father bought me a piano. Toto is taught by his parents to be independent. |
It carries the suggestion of repeated action:
| Formal Form | Colloquial Form | Meaning |
| Di Bandung tiap malam saya digigiti nyamuk. Maling itu dipukuli sampai pingsan. |
Di Bandung tiap malam gua digigitin nyamuk. Maling itu dipukulin ampe pingsan |
I am bitten by mosquitos every night in Bandung. The burglar was beaten(repeatedly) until he fainted. |
It also occurs with numerous verbs which in formal Indonesian do not take a suffix.
| Formal Form | Colloquial Form | Meaning |
| Saya akan bantu kamu cuci baju. Tolong jaga anak saya. Bisa tunggu saya sebentar? Orang itu sedang melihat saya. Saya mau ajak dia ke pesta kamu. Saya mau mengajak dia ke pesta kamu. |
Gue akan bantuin elo cuci baju. Tolong jagain anak gua. Tungguin gue bentar yaa .. Orang itu lagi liatin gue. Gua mau ajakin dia ke pesta elu. Gua mau ngajakin dia ke pesta elu. |
I will help you wash the clothes. Please baby sit my child. Please wait for me for a second. That person is staring at me. I want to invite him to your party. |
Reference: Colloquial Jakartan Indonesian by James Neil Sneddon, 2006