How is the present active infinitive formed?
2nd PP I -āre II -ēre III -ere IIIio -ere IV -īre
How is the present passive infinitive formed?
2nd PP I -ārī II -ērī III -ī IIIio -ī IV -īrī
How is the perfect active infinitive formed?
3PP + sse
Amāvī —> amāvisse
How is the perfect passive infinitive formed?
4th PP + esse (duo verba!)
Amatus-a-um esse
How is the future active infinitive formed?
Take perfect passive infin. + ūr
Amatūrus-a-um esse
How is the future passive infinitive formed?
Take the perfect passive infin. + īrī
(4th pp uses UM ending only)
Amatum īrī
What is complementary infinitive?
The infinitive is used after special verbs such as like, try, want, be, able, decide, order (iubeō), forbid (vetō), and decide; e.g. I like to swim
What is indirect statement