| inspirieren | inspire |
| inspizieren | inspect check examine |
| inserieren | advertise |
| konspirieren | conspire |
| aspirieren | aspirate |
| inquirieren | inquire |
| insinuieren | insinuate |
| insistieren | insist |
| inskribieren | register |
| instituieren | institute |
| instruieren | instruct |
| inszenieren | stage |
| hospitieren | sit in on classes sit in on lectures |
| integrieren | integrate |
| Infigieren | infixation |
| indizieren | index |
| infizieren | infect |
| inhibieren | inhibit |
| initiieren | initiate |
| injizieren | inject |