Explanation of the words of Ibn Malik (may Allah have mercy on him): "And the form fi'ul was neglected, and the reverse is rare *** because they intended to assign fi'il to fu'il."

The Shaykh : He said: "And fi'ul was neglected"
Fi'ul was neglected, meaning the Arabs did not pronounce the word fi'ul but neglected it. However, the author mentioned it merely to complete the classification, to complete the classification and the enumeration. Yet it was neglected, although some said it is not neglected but rather rare, rare. He said:
"And the reverse is rare"
What is the reverse? If you reverse fi'ul? Fu'il, fu'il, like du'il.
The student: ...

The Shaykh : Hmm, what?
The student: Humid.

The Shaykh : Humid is a past tense verb. Well, it is a past tense verb, brothers. We do not need verbs now; we are now dealing with nouns. That is why he says:
"And the reverse is rare *** because of their intention"
Meaning: because of the Arabs' intention.
"To assign fi'il to fu'il"
Meaning: that their pronunciation of fu'il in the noun is rare because they transferred this pattern to the past tense of the triliteral verb in the passive voice, in order to assign fi'il, meaning to assign the verb. Here, the verb is not the intended measure; the intended thing is the noun, the word. That is, they intended for fu'il to be a characteristic of verbs, a characteristic of verbs. That is why he said:
"Because of their intention to assign fi'il to fu'il"
Then the author moved on to the ruling on the triliteral verb.