| Wortart | Verb |
|---|
| Indikativ | |
|---|---|
| Präsens | Präterium |
| (he) reacts, reacteth | (he) reacted |
| (they) react | (they) reacted |
| Konjunktiv | |
| Präsens | Präterium |
| (he) react | (he) reacted |
| (they) react | (they) reacted |
| Partizipien | |
| Präsenspartizip | Perfektpartizip |
| reacting | reacted |
| Esperanto | reakcii; reagi |
|---|---|
| Niederdeutsch | reageren |
| Niederländisch | reageren |