Agere Collocations

The verb agō, agere, ēgī, āctum begins with the concrete idea “drive, lead, set in motion.” Classical Latin extends that idea into recurring frames: rem agere conducts business, causam agere pleads a case, cum aliquō dē rē agere negotiates with someone about a matter, and grātiās agere gives thanks. English may translate all of these with different verbs, but the Latin sees an activity being carried forward. Compare the different conventional pairings on Facere Collocations.

These are not arbitrary idioms without grammar. Their nouns take predictable cases, and the prepositional or clausal complements show who participates and what outcome is sought. Yet the pairings themselves are conventional: English “do business,” “make a case,” and “give thanks” cannot be reconstructed by substituting dictionary equivalents one word at a time.

Map the frame before choosing a translation

Start with three questions: Is there an accusative object? Is there a person introduced by cum? Is there a topic in dē plus the ablative or a requested action in ut/nē plus the subjunctive? This produces a more reliable reading than translating agere immediately as “do.”

Conducting an affair or pleading a case

Rem agere presents a matter as active business rather than a static object. Context supplies whether the “matter” is commercial, political, or personal. Negōtium agere is more explicitly “conduct business.” Neither phrase is the normal way to say that an event “happens”; for that, Latin has verbs such as accidere and fierī.

Causam agere belongs especially to advocacy: the agent presents or argues a party’s case. It differs from causam dīcere, traditionally used of a defendant making a defense, and from iūdicāre, “judge.”

The same verb can therefore refer to the ongoing conduct of proceedings without meaning “perform” in the broad English sense. The noun selects the institutional interpretation.

Dealing with a person: cum, dē, ut, and nē

When agere means deal, negotiate, or raise a matter, the person is normally introduced by cum plus the ablative. The subject discussed takes dē plus the ablative.

If the negotiation aims at an action, ut or nē introduces a substantive result/request clause with the subjunctive. The construction does not mean merely “talk about the possibility”; it often implies pressure, persuasion, or an arrangement.

The passive periphrastic agendum est is impersonal here: literally, “dealing must be done.” The party approached remains in cum plus ablative, not a direct object.

Giving thanks: grātiās agere

The standard frame is grātiās agere alicui: grātiās is accusative plural, the person thanked is dative, and a reason may follow as prō plus the ablative or quod plus a finite clause.

This is not equivalent to every phrase involving gratitude. Grātiam habēre means “feel or retain gratitude,” while grātiam referre means “return a favor.” The three expressions can describe successive stages: acknowledge thanks, remain grateful, and repay kindness.

Living, passing time, and asking quid agis

With vītam or aetātem, agere portrays life as a course carried on. An adjective or adverb describes its quality; a place phrase says where it is spent. Aetātem agere can sound more (literary), whereas vītam agere is broadly available in prose.

In a real activity context, Quid agis? asks “What are you doing?” As a conventional greeting, it asks “How are you?” Tone and response disambiguate it. Horace gives the phrase a deliberately overfamiliar flavor in the following source-faithful line:

The superlative is humorous in context; learners should not copy the whole line as a neutral greeting. A simple Quid agis? is (informal) and conventional.

When the process is over: actum est

Perfect passive āctum est can literally report that something “has been conducted.” With dē plus ablative it becomes the forceful expression “it is all over with” or “the case is lost for.”

Do not generalize that idiom to every passive form of agere. In causa bene ācta est, the ordinary sense “the case was well pleaded” remains available. Lexicalization belongs to the whole frame āctum est dē....

Agere is not interchangeable with facere or gerere

All three verbs can receive broad English translations such as “do” or “conduct,” but Classical pairings divide their labor. One normally says iter facere “make a journey,” grātiās agere “give thanks,” and bellum gerere “wage war.” Agere may remain semantically intelligible with an unexpected noun, but intelligibility is not evidence that the combination is idiomatic.

Common Mistakes

Copying English “thank you” with an accusative person

Omitting cum before the negotiating partner

Building “wage war” from agere

Reading every quid agis literally

Key Takeaways

Treat the object and complements as one construction: rem agere, causam agere, grātiās alicui agere, and vītam agere. With negotiation, use cum for the person, dē for the topic, and ut/nē plus subjunctive for the desired outcome. Keep iter facere and bellum gerere distinct. Idiomatic Latin organizes activities through inherited pairings, not through the broad English label “do.”