Conjugation of the verbs specific to the pillars of religion (faith, excellence in worship, and Islam)

The questioner : Shaykh, is there a grammatical or legal point in the fact that the names of Islam, faith, and excellence in worship are on the pattern of if'ala, and their verbs are on the pattern of af'ala, while the verbs for disbelief, open sinfulness, and disobedience are on the pattern of fa'ala, or kufira, fasuqa, and 'asaya? Is there a grammatical or legal point in this matter?

The Shaykh : No, not at all. This is simply how the language came to be. Islam comes from aslama, meaning to submit; ihsan comes from al-ihسان, meaning to do good; iman comes from al-iman; and its root is from aman, meaning safety.

The questioner : Shaykh, the verb in amana is, of course, on the pattern of af'ala. The fa, 'ayn, and lam in amana are...

The Shaykh : Yes. Af'ala.

The questioner : It would be mim and nun, but the verb is... what is it? Amanah or... what is it?

The Shaykh : No, no. The verb is amana in the past tense, yu'mina in the present tense, the imperative is umin, and the verbal noun is iman.

The questioner : Excuse me, look, I mean, amana is on the pattern of af'ala.

The Shaykh : Correct.

The questioner : Okay, what is the derivation that is on the pattern of fa'ala?

The Shaykh : From which side?

The questioner : Meaning,

The Shaykh : Fa'ala means that the root, which is mim, nun, and hamza, its smallest derivation is amana, yu'mina, amanan.

The presenter : May Allah reward you with good.