لا، ما، لم، لن
لا before a present-tense verb means 'does not'.
لم before a jussive present-tense verb negates the past.
| Particle | Negates | Verb form |
|---|---|---|
| لا | present | indicative |
| ما | past | past (māḍī) |
| لم | past | jussive present |
| لن | future | subjunctive present |
لن before a subjunctive present-tense verb negates the future.