| Imperfektion | imperfection |
| imperfektiv | imperfective |
| Perfektion | perfection |
| Imperfektum | imperfect |
| Imperfekt | imperfect preterimperfect |
| Interjektion | interjection |
| Impression | impression |
| Apperzeption | apperception |
| Perzeption | perception |
| perfektiv | perfective |
| Infektion | infection |
| Untersektion | subsection |
| Erektion | erection |
| Insurrektion | insurrection |
| Interaktion | interaction |
| Interception | interception |
| Intervention | intervention |
| Imperator | emperor |
| Implantation | implantation |
| Imperativ | imperative |
| imperativ | imperative |