Future Perfect (Will Have Done)
Form the future perfect active using the perfect stem plus the -ero/-eris/-erit endings. Understand its use in temporal clauses where Latin requires a completed future action before another takes place.
A lesson of Latin A2 — Elementary, in The Perfect System, about 10 minutes.
Future Perfect Tense (Will Have Done)
By the end of this lesson, you will form and translate the Latin future perfect active tense and use it correctly in temporal clauses where Latin requires a completed future action.
What the Future Perfect Expresses
The future perfect describes an action that will be completed before another future action takes place. In English: "will have + past participle."
When you arrive, I will have already finished. — The finishing comes first (future perfect); the arriving comes second (simple future).
In English we often drop the future perfect and substitute a simple present ("When you arrive, I finish"). Latin does not allow this shortcut in temporal clauses — if the action genuinely precedes the other, it must be in the future perfect.
Formation: Perfect Stem + Future Perfect Endings
| Person | Singular | Plural |
|---|---|---|
| 1st | -ero | -erimus |
| 2nd | -eris | -eritis |
| 3rd | -erit | -erint |
Caution: the 1st singular -ero looks like the future of esse (ero = "I will be"). Context usually disambiguates: if you can find a perfect stem before it, it is future perfect.
Full Conjugation: amare — Future Perfect Active
Perfect stem: amav-
| Person | Singular | Translation | Plural | Translation |
|---|---|---|---|---|
| 1st | amavero | I will have loved | amamverimus | we will have loved |
| 2nd | amaveris | you will have loved | amaveritis | you all will have loved |
| 3rd | amaverit | he/she will have loved | amaverint | they will have loved |