Explanation of the words of Ibn Malik (may Allah have mercy on him): "And any other verb in which there is an alif *** or a waw or a ya, know it as a defective verb."

The Shaykh : When the author (may Allah have mercy on him) finished mentioning the defective nouns, specifically those whose endings are defective, he began to mention the defective verbs, specifically those whose endings are defective. A verb becomes defective through an alif, a waw, or a ya. It is defective through an alif, such as "yas'aa" (he strives); through a waw, such as "yaghu" (he raids); and through a ya, such as "yarmin" (he throws). For this reason, he said:
"And any other verb in which there is an alif *** or a waw or a ya, know it as a defective verb"
That is: "Any other verb" is the subject, and the clause "know it as a defective verb" is its predicate.
The meaning is: Any verb whose ending becomes an alif, a waw, or a ya is called a defective verb. Thus, verbs are called defective (mu'tal), while nouns are called muqassar (truncated) or munqas (incomplete). Verbs are called defective. "Know it as a defective verb." Does it have another name? If the end of a verb is a letter of defect, as we passed through in the chapter of morphology, it is called naqis (incomplete). It is called naqis if its end is a letter of defect. Good. If its middle is affected, it is called mujawwaf (hollow). And if its beginning is affected...
The student: ... .

The Shaykh : Yes, he said: "And any other verb in which there is an alif *** or a waw or a ya, know it as a defective verb".