Learn Arabic (Modern Standard): عجلن! من الضروري أن ننهي هذه الطلبية. - Hurry up! It is necessary that we finish this order.

The base imperative for 'hurry' is عجِّل ('ajjil). To make the command urgent, we attach the heavy emphatic suffix ـَنَّ (-anna). When this suffix attaches to a standard imperative, the last letter of the verb changes its sukun to a fatha. So, عجِّل becomes عجِّلَنَّ ('ajjilanna), meaning 'Hurry up right now!'

Is the final ن in عجلن pronounced like a regular 'n'?

No, it is a doubled consonant, even though the shadda mark isn't explicitly written here. It must be pronounced with a heavy, held 'n' sound: عجّلَنَّ ('ajjilanna). This extra weight in pronunciation is what gives the heavy emphatic suffix its name and matches the urgent intensity of the command.

Why does the verb ننهي (we finish) end with a fatha sound rather than a damma?

It comes right after the particle أن ('an), which puts the verb into the subjunctive mood. ننهي (nunhi) is a defective verb because it ends in the letter ي (ya). While the regular present tense (indicative mood) hides the final vowel on these verbs, the subjunctive fatha is fully written and pronounced on the ي, making it نُنْهِيَ (nunhiya).

I know the word طلب means 'request.' How does الطلبية differ from it here?