| Part of speech | verb |
|---|
| Indicative mood | |
|---|---|
| Present tense | Past tense |
| (he) reacts, reacteth | (he) reacted |
| (they) react | (they) reacted |
| Subjunctive mood | |
| Present tense | Past tense |
| (he) react | (he) reacted |
| (they) react | (they) reacted |
| Participles | |
| Present participle | Past participle |
| reacting | reacted |
| Dutch | reageren |
|---|---|
| Esperanto | reakcii; reagi |
| Low German | reageren |