1. Perfect System Future Perfect Tense
Latin I
Grammar Lesson

2. Review of Terms The Four Principal Parts:
1st P.P: 1st person singular, present tense
2nd P.P. present infinitive; present stem
3rd P.P. 1st person singular, perfect tense; perfect active stem
4th P.P. perfect passive participle

3. Review of Terms What is the Future Perfect tense?
Represents a “perfect” action – one that has been completed
Future Perfect tense is an action that began in the past and will be completed in the future

4. Future Perfect Tense Formula
Basic formula to form perfect tense
Perfect Stem + Future Perfect Endings
Future Perfect Endings = Future tense of sum
Perfect Stem formed by removing the “i” from the 3rd P.P.
Amo, amāre, amavi, amatus – a, um
amavi (-) “i”  amav-
Perfect Stem = amav-

5. Forming the Perfect Stem
Find the present stem for the following verbs
Libero, liberāre, liberavi, liberatus – a, um
Mereo, merēre, merui, meritus – a, um
Teneo, tenēre, tenui, tentus– a, um

6. Future Perfect Endings
Singular
-ero (I)
-eris (you)
-erit (he, she, it)
Plural
-erimus (we)
-eritis (y’all)
-erint (they)

7. Future Perfect Tense amo, amāre, amavi Perfect Stem = amav
Pref. Stem + Future Perf. E.
amavero amaverimus
amaveris amaveritis
amaverit amaverint
English Translation
English Helping Verbs: “will have” + “-ed” form
I will have loved
you will have loved
she will have loved
we will have loved
y’all will have loved
they will have loved