Both doors use the same Sarf-e-Sagheer structure; the main difference is the form of the Mudhaari' and the forms that depend on it.
Bab DharabaBab NasaraSlot
يَضْرِبُيَنْصُرُMudhaari'
اِضْرِبْاُنْصُرْImperative
مَضْرِبٌمَنْصَرٌIsm Dharf
So the learner should compare the forms, not memorize each Bab as an unrelated list.
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Trilateral Bare Regular - Bab 2: Dharaba Yadribu
Both doors use the same Sarf-e-Sagheer structure; the main difference is the form of the Mudhaari' and the forms that depend on it.
Bab DharabaBab NasaraSlot
يَضْرِبُيَنْصُرُMudhaari'
اِضْرِبْاُنْصُرْImperative
مَضْرِبٌمَنْصَرٌIsm Dharf
So the learner should compare the forms, not memorize each Bab as an unrelated list.