Et cum spiritu tuo = and with your spirit
Dòmine, non sum dignus, ut intres sub tectum meum = Lord, I am not worthy that you should enter under my roof
and the mea culpe are there in the Latin.
So what's the problem, again???
Good question.
The real problem is that 47 or so percent of the American Bishops have a problem with the document Liturgiam Authenticam and are challenging it - and therefore the Holy See - through these new translations.