Future Imperative

Latin has a second imperative paradigm traditionally called the future imperative: facitō “you shall do / do when the occasion arises,” facitōte “you all shall do,” and faciuntō “they shall do.” Unlike the ordinary present imperative, it also supplies third-person forms. It is especially at home in laws, rituals, wills, instructions, maxims, and commands whose performance is tied to a future condition (formal/legal/ritual).

English usually translates these forms with an ordinary imperative, “shall,” “is to,” or “let ...,” depending on context. The label “future” describes their paradigm and typical orientation; it does not mean that English will plus a verb is always the right translation.

For the more frequent immediate second-person paradigm, review the Present Active Imperative. The contrast below concerns form and discourse setting, not a simple present-time versus future-time split.

The active endings

The core active endings are -tō for second- and third-person singular, -tōte for second-person plural, and -ntō for third-person plural. They attach to the present-system stem with the same conjugational vowels seen elsewhere.

The third-conjugation singular regitō and third-iō capitō contain -i- before -tō. The third-person plurals show -untō or -iuntō. These are present-stem forms; the perfect principal part does not generate them.

The future conditions establish the later occasion. Scrībitō addresses one person; iūdicātōte addresses several.

Why Latin uses it

The ordinary present imperative often tells an addressee to act from the current situation: scrībe! “write!” The future imperative commonly makes the instruction valid when a later circumstance occurs or states a rule meant to hold generally.

This is a pragmatic contrast, not an absolute timeline switch. Authors sometimes use future imperatives without an expressed condition, especially in maxims and procedural instructions. Conversely, a present imperative can refer to an action physically carried out later. Genre and discourse matter.

In a standing instruction, the future imperative can resemble legal English “shall”:

These examples are (formal/testamentary) and (ritual). Everyday conversation normally prefers the present imperative or a subjunctive construction.

Third-person forms

The future imperative’s third persons are one reason the paradigm survives prominently in prescriptive language. A lawgiver can direct what some named person or class of people must do.

The singular dēfenditō and plural audiuntō are imperatives, not future indicatives. The English translation uses “shall” because a statute imposes an obligation; in another context “let the consul defend” could be better.

An early Roman legal fragment illustrates the register:

Itō is the future imperative of eō. The fragment is (archaic/legal), and its compressed syntax should not be treated as ordinary conversational prose.

Irregular and high-frequency forms

Some frequent verbs have forms worth memorizing:

Scītō often introduces an assurance or warning (marked/formulaic). It is not merely future indicative sciēs “you will know.”

Passive and deponent forms

The best-known future passive endings are -tor in the second- and third-person singular and -ntor in the third-person plural: amātor “you/he/she shall be loved,” reguntor “they shall be ruled.” The historical record is less tidy than that classroom pattern: archaic or marked singulars in -minō occur, and active-looking -tō can have passive or deponent value in some authors. Later grammarians also supplied an analogical second-person plural in -minor, but that form has no secure Classical attestation; Latin can recast the instruction.

These passive forms are strongly associated with prescriptions (formal/archaizing). Deponent verbs use passive-looking future imperative forms with their lexical active meaning. For example, sequitor can mean “you/he/she shall follow,” not “shall be followed.”

Future imperative versus future indicative

The two moods do different jobs. A future indicative predicts or asserts; a future imperative directs.

English “will/shall” can blur this difference, especially in legal translation. The Latin endings make it grammatical: -bis is future indicative, while -tō is future imperative.

A production routine

To prescribe “When the messenger arrives, let him report everything”:

1. choose future imperative because the command activates under a later condition;
2. identify third-person singular from “he”;
3. take present stem of nūntiō, nūntiāre;
4. add -tō: nūntiātō;
5. produce cum nūntius vēnerit, omnia nūntiātō.

To address several people, select -tōte. To direct several third persons, use -ntō. Never infer person from English “let” alone.

Common Mistakes

1. Treating every -tō as second-person singular

2. Building the form from the perfect stem

3. Using singular -tō for several addressees

4. Translating it automatically with English “will”

5. Giving a deponent a passive lexical meaning

Key Takeaways

The active future imperative uses -tō for second- and third-person singular, -tōte for second-person plural, and -ntō for third-person plural. It is built on the present system, not the perfect stem. Its characteristic homes are future-conditioned instructions and standing prescriptions in legal, ritual, testamentary, and proverbial language. Translate according to function—imperative, “shall,” “is to,” or “let”—and use context to resolve the person of singular -tō.