Conditions to break a precept

In the commentary it's said, in order to lie, all four conditions must be met: 1. An untrue statement 2. Intention to deceive 3. Effort is made 4. Other deceived by what is said But according to original Vinaya, AFAIK, whether one is deceived or not is irrelevant. I think that is because the intention to lie arises from the doer not the perceiver. But if last condition is not met i.e. a being is not dead, how can we say someone is killing?