"Neměl jsem bez ní odjíždět." = "I should not have left without her."
"Neměl bych bez ní odjíždět." = "I should not leave without her."
Is this one right?
Shouldn't it be in present tense? Měl + infinitive of any verb = (someone) should do something(the verb), so the same thing with neměl would be the same just in negative? Someone shouldn't do something..?
Both sentences are in the past. I can't see any problem.