A Prohibition which is not similar to the prototypical prohibition against Muzzling an Animal while it threshes, doesn't receive Whipping: Pesachim 41b (2x); Makkot 13b, 15a
Prohibitions which are worded with the negative instruction "Al": Eruvin 17b
A Prohibition which involves no actual activity - Lav SheEin Bo Maaseh לאו שאין בו מעשה
Whether such a transgression is punished with lashes, or not: Pesachim 63b, Bava Kama 5a; Makkot 2b, 4b, 13b, 16a, 20b; Zevachim 29b; Temurah 3a-4b
Whether there are lashes for a person who fails, at some point, to fulfill the positive action, or only for a person who creates a situation where the positive action is unfulfillable: Makkot 15a-16b
Whether there is a punishment of whipping if the Positive Action was fulfillable before the violation ever occurred, as opposed to a situation where the positive action is merely corrective: Makkot 14b-15a
Considering a prohibition to fit into this class because the prohibited act is legally recognized as effective (Example: Sanctifying an animal in a forbidden manner): Temurah 4b
Prohibitions for which the proper warning is specifically for Death, Not Whipping - Lav haNitan leAzharat Mitat Beit Din לאו הניתן לאזהרת מיתת בית דין