In a previous post, I explained how to form prohibition (don’t) in Arabic using prohibitive (لا) followed by the appropriate form of the present tense verb. It should be noted that after prohibitive (لا), verbs are in the jussive case. This means that if in the present tense, the verb ends in a suffix like (ان، ون، ين), the final (ن) has to be deleted, this is the case with the pronouns you feminine (أنتِ), dual (أنتما) and plural masculine (أنتم). Consider the following examples:

أنتِ تفتحين.

“You open.”

لا تفتحي!

“Don’t open!”

أنتم تفتحون!

“You open.”

لا تفتحوا!

“Don’t open!”

أنتما تفتحان!

“You open.”

لا تفتحا!

“Don’t open!”

Please also note how to make prohibition with feminine plural (أنتن).

أنتن تفتحن!

“You open.”

لا تفتحن!

“Don’t open!”