1. Principal Parts of Verbs of First Conjugation Verbs
Present Present Perfect Perfect Meaning
Active Active Active Passive
Indicative Infinitive Indicative Participle
voco vocare vocavi vocatus call
First Conjugation Exceptions
Present Present Perfect Perfect Meaning
do dare dedi datus give
sto stare steti status stand
(ad)juvo (ad)juvare (ad)juvi (ad)jutus help

2. Principal Parts for the Irregular Verb “to be”
First Conjugation Exceptions
Present Present Perfect Future Meaning
Active Active Active Active
Indicative Infinitive Indicative Participle
sum esse fui futurus be
absum abesse afui afuturus be absent
adsum adesse adfui adfuturus be present

3. Second Conjugation Verbs
Present Present Perfect Perfect Meaning
Active Active Active Passive
Indicative Infinitive Indicative Participle
moneo monere monui monitus warn

4. Second Conjugation Verbs (Page 65)
Present Present Perfect Perfect Meaning
Active Active Active Passive
Indicative Infinitive Indicative Participle
habeo habere habui habitus have, hold
debeo debere debui debitus owe, ought
moneo monere monui monitus warn, advise
terreo terrere terrui territus frighten
timeo timere timui fear, be afraid
doceo docere docui doctus teach
maneo manere mansi mansus remain
video videre vidi visus see
sedeo sedere sedi sessus sit
respondeo respondere respondi responsus answer