I'm on unit 3 of Wheelock's right now and can't help but feel there are some translations of verbs I've encountered which might make them more intuitive or natural in our current vernacular which aren't listed as definitions in Wheelock's.
laudare - to give credit (book uses 'to praise')
debere - should (book uses 'to owe, ought, must')
servare - to watch over (book uses 'keep, save, guard, preserve')
errare - to be wrong (book ...