Three tenses of the perfect tense
Perfect, pluperfect, future perfect
The three tenses of the present system
Present, imperfect, future
How do you find the present stem
Drop the re from the second principal part
How do find the perfect stem
Drop the i from the third principal part
Fortes fortuna juvat
Fortune aids the brave
Ora et labora
Pray and work
Semper fidelis
Always faithful
Nunc aut numquam
Now or never
Errare est humanum
To err is human