Dē verbī thematīs et terminātiōnibus
1. Terminātiōnēs sunt litterae vel syllabae, ut -re, -ō, -isse, -us, -a, -um, quae adduntur ad vocābulī partem priōrem quae dīcitur thema.
2. Verbīs Latīnīs sunt terna themata:
(1) thema praesentis, ut ōrā-, dēbē-, leg-, pūnī-;
(2) thema perfectī , ut ōrāv-, dēbu-, lēg-, pūnīv-;
(3) thema supīnī, ut ōrāt-, dēbit-, lēct-, pūnīt-.
3. Ex themate praesentis [-] quae fōrmae fīunt additīs terminātiōnibus?
(1) additō -(e)re: īnfīnītīvus praesentis;
(2) additō -(ē)ns -(e)ntis: participium praesentis;
(3) additō -ō, -(i)s, -(i)t...: praesēns indicātīvī;
(4) additō -(ē)bam, -(ē)bās, -(ē)bat...: imperfectum indicātīvī;
(5) additō -bō, -bis, -bit... aut -am, -ēs, -et...: futūrum;
(6) additō -em, -ēs, -et... aut -am, -ās, -at...: praesēns coniūnctīvī;
(7) additō -(e)rem, -(e)rēs, -(e)ret...: imperfectum coniūnctīvī;
(8) additō -(e)nd|um -ī -ō: gerundium;
(9) additō -(e)nd|us -a -um: gerundīvum;
(10) additō - (nūllō), -te: imperātīvus praesentis;
(11) additō -(i)tō, -(i)tōte: imperātīvus futūrī.
4. Ex themate perfectī [-] quae fōrmae fīunt?
(1) additō -isse: īnfīnītīvus perfectī;
(2) additō -ī, -istī, -it...: perfectum indicātīvī;
(3) additō -eram, -erās, -erat...: plūsquamperfectum indicātīvī;
(4) additō -erō, -eris, -erit...: futūrum perfectum;
(5) additō -erim, -eris, -erit...: perfectum coniūnctīvī;
(6) additō -issem, -issēs, -isset...: plūsquamperfectum coniūnctīvī.
5. Ex themate supīnī [=] quae fōrmae fīunt?
(1) additō =um: supīnum I;
(2) additō =ū: supīnum II;
(3) additō =us -a -um: participium perfectī (passīvī);
(4) additō =ūr|us -a -um: participium futūrī.