Chapter 18, Drill a: principal parts of verbs including those whose present and perfect stem look the same.

For each Latin verb, whose first principal part is provided, give the second (present active infinitive) and third (perfect active tense) principal parts.

Example:
ascendo Answer: ascendere ascendi.

1. contendo
2. defendo
3. descendo
4. incendo
5. ostendo
6. verto
7. constituo
8. respondeo
9. ascendo
10. fleo
11. vendo
12. absum
13. conspicio
14. disco
15. abeo
16. studeo
17. exeo
18. transeo
19. pereo
20. valeo

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