| influenzieren | influence |
| infundieren | inject |
| infizieren | infect |
| induzieren | induce |
| Infigieren | infixation |
| informieren | inform let know |
| konfundieren | confuse |
| diffundieren | diffuse |
| fundieren | erect establish |
| fungieren | act as function as |
| denunzieren | denounce denunciate |
| verunzieren | disfigure mar blemish |
| finanzieren | finance |
| indizieren | index |
| injizieren | inject |
| inspizieren | inspect check examine |
| inkubieren | incubate |
| inquirieren | inquire |
| insinuieren | insinuate |
| intendieren | intend |