Negative Imperative is the seventieth skill in the language tree for Hebrew. It has a total of five lessons, each teaching how to say "do not do _" in Hebrew for a variety of verbs.
Grammar Notes[]
The negative imperative tense in Hebrew uses the word אַל (al) followed by the future tense of the verb that matches the subject's gender and number:
!אַל תאכל את זה = Do not eat that!
The normal imperative forms are not used at all in the negative.
References[]
Duolingo Lesson: www.duolingo.com/skill/he/Negative-Imperatives