Do verbs have i'rab too?

Everything in this section so far has been about the ism. The verb has an i'rab of its own, and it is a different system.

Only the فِعْل مُضَارِع — the present-tense verb — is declinable. The مَاضِي and the أَمْر are mabnī: their endings are fixed.

The muḍāri' takes these three. The māḍī and the amr are mabnī and take none of them.

And the states are not the same three. The mudāri' takes رَفْع, نَصْب and جَزْم — and never jarr. The ism takes rafa, nasab and jarr — and never jazm. The classical wording states both halves in one sentence, and it is on the rafa page above.

يَأْكُلُ is marfū' when nothing governs it. أَنْ يَأْكُلَ is manṣūb, because أَنْ demands it. لَمْ يَأْكُلْ is majzūm, because لَمْ demands it.

The verb's own signs, the particles that govern it, and the five verbs are all dealt with in the verb section of this guide.

Jazm belongs to the verb; jarr belongs to the ism. Neither ever crosses over.

A noun is never majzūm. A verb is never majrūr.

The two share rafa and nasab, and nothing else. When you meet a sukūn at the end of a word, you are looking at a verb — no ism is ever put into jazm.