Exemplum:
Dominus servum vocat = servus ā dominō vocātur.
1. Ancilla dominum salūtat = dominus ab ancillā salūtātur
2. Dominus ā servīs salūtātur = servī dominum salūtant
3. Dominus servōs interrogat = servī ā/ab dominō interrogantur
4. Dāvus accūsātur ā Mēdō = Mēdus Dāvum accūsat
5. Dāvus sacculum in mēnsā pōnit = sacculus in mēnsā pōnitur ā/ab Dāvō
6. Iūlius ā Mēdō timētur = Mēdus Iūlium timet
7. Iūlius Mēdum vocat = Mēdus ā/ab Iūliō vocātur
8. Iūlia ā puerīs vocātur = puerī Iūliam vocant
9. Iūlia puerōs nōn audit = puerī ā/ab Iūliā nōn audiuntur
10. Puerī vocantur ā Iūliā = Iūlia puerōs vocat
11. Servī improbī dominum īrātum timent = dominus īrātus ā/ab servīs improbīs timētur
12. Servī improbī ā dominō īrātō verberantur = dominus īrātus servōs improbōs verberat