"Multiple infinitive structures (\"hätte gemacht werden können\")" → translation: 'could have been done' (more literally: 'would have been able to be done')

Multiple infinitive structures ("hätte gemacht werden können")

What does this structure mean?

The string "hätte gemacht werden können" is a good example of a German verb cluster that combines several verbal elements: a finite auxiliary in Konjunktiv II (hätte), the past participle of the main verb (gemacht), the passive infinitive marker (werden), and a modal infinitive (können). Together they express a past hypothetical possibility in the passive: "could have been done" (more literally: "would have been able to be done").

Example:
- "Das hätte gemacht werden können." = "That could have been done."

These long clusters appear whenever German combines tenses/moods (perfect, Konjunktiv II), passive voice (werden), modal verbs (können, müssen, sollen, dürfen, wollen), or verbs like "lassen". Because non-finite verbs gather at the end of the clause in German, they form a string of infinitives and participles.

When do I use multiple infinitive clusters?

- To form the perfect (or Konjunktiv II perfect) when a modal verb accompanies another verb: e.g., "Er hat kommen müssen." / "Er hätte kommen können."
- To express a past hypothetical ability or possibility in the passive: "Das hätte gemacht werden können." (It could have been done.)
- To talk about futureability + passive: "Das wird gemacht werden können." (That will be able to be done.)
- To build causative + modal constructions: "Ich hätte das reparieren lassen können." (I could have had that repaired.)

Note: These constructions are common in written and formal spoken German. In casual speech people often rephrase them to avoid long verb clusters.

How are these structures formed? (rules and word order)

Basic parts
- finite auxiliary (conjugated): haben / sein / würde / hätte / wird etc.
- Partizip II (past participle) of the lexical verb: gemacht, gelöst, bezahlt, abgeschlossen, etc.
- the passive infinitive marker: werden
- a modal infinitive: können, müssen, sollen, dürfen, wollen
- optionally: lassen (causative) or other infinitives

General ordering rule
When a Partizip II and one or more infinitives occur together, the usual order is (from left to right, i.e., earlier to later in the clause): Partizip II of the main verb → werden (if passive) → (lassen if present) → modal infinitive. The finite auxiliary goes where German sentence structure requires it (e.g., second position in main clauses, final position in subordinate clauses).

Common patterns and formulas

Pattern 1 — Perfect of modal + main verb (double infinitive)
- Formula: haben (finite) + main-infinitive + modal-infinitive
- Example: "Sie hat das Problem lösen können." = "She has been able to solve the problem."

Pattern 2 — Konjunktiv II (conditional) with modal (active)
- Formula: hätte (finite, Konj. II) + main-infinitive + modal-infinitive
- Example: "Er hätte das machen können." = "He could have done that."

Pattern 3 — Konjunktiv II perfect + passive + modal (title example)
- Formula: hätte (finite) + Partizip II + werden + modal-infinitive
- Example: "Die Aufgabe hätte gestern erledigt werden können." = "The task could have been completed yesterday."
- Important contrast:
- Without modal (Konj. II perfect passive): "Die Tür wäre geöffnet worden." = "The door would have been opened."
- With modal: "Die Tür hätte geöffnet werden können." = "The door could have been opened."
(With a modal, German uses the 'werden + modal' infinitive chain and the auxiliary typically appears as "hätte".)

Pattern 4 — Future passive + modal
- Formula: wird (finite) + Partizip II + werden + modal-infinitive
- Example: "Die Maschine wird repariert werden müssen." = "The machine will have to be repaired." (i.e. "will have to be")

Pattern 5 — Causative 'lassen' + modal
- Formula: hätte (finite) + main-infinitive + lassen + modal-infinitive
- Example: "Ich hätte mein Auto reparieren lassen können." = "I could have had my car repaired."

Pattern 6 — Longer chains (still grammatical, but heavy)
- Example: "Wir haben das reparieren lassen müssen." = "We have had to have that repaired."

Auxiliary selection note
- Some verbs normally form the perfect with "sein" (movement or change of state): "Er ist gekommen." However, when a modal is added, German usually uses "haben" with a double infinitive: "Er hat kommen müssen." (Not "Er ist kommen müssen.")
- For passive + modal in Konjunktiv II perfect, you will usually use "hätte" (not "wäre") because the modal triggers a construction with infinitives: "Die Tür hätte geöffnet werden können." (See contrast above.)

Common mistakes and how to avoid them

- Wrong order: "*hätte werden gemacht können."
- Correct: "hätte gemacht werden können." — the past participle (gemacht) comes before "werden", and "werden" comes before the modal.

- Wrong auxiliary with a modal + movement verb: "*Er ist kommen müssen."
- Correct: "Er hat kommen müssen."

- Using the past participle of the modal wrongly with another infinitive: "*Er hat das gemacht gekonnt." (wrong)
- Correct: "Er hat das machen können." (double infinitive)

- Confusing "wäre" and "hätte" in passive Konjunktiv II with modals: "*Die Tür wäre geöffnet werden können." (wrong)
- Correct: "Die Tür hätte geöffnet werden können."

Stylistic tip: Very long verb clusters sound heavy. If possible, rephrase to be clearer, e.g. use an impersonal "man" or an active construction: "Man hätte das machen können." or "Es wäre möglich gewesen, das zu machen."

Useful example sentences (grouped by pattern)

[Double infinitive — perfect or Konjunktiv II]
- "Ich kann das machen." = "I can do that."
- "Ich habe das machen können." = "I have been able to do that."
- "Er hat das nicht machen wollen." = "He didn't want to do that." (perfect of wollen + infinitive)
- "Wir haben die Prüfung bestehen müssen." = "We have had to pass the exam."
- "Wenn ich Zeit gehabt hätte, hätte ich dir helfen können." = "If I had had time, I could have helped you."
- "Er hätte das machen können, aber er hat es nicht versucht." = "He could have done it, but he didn't try."

[Passive + modal + Konj. II (title pattern)]
- "Das hätte gemacht werden können." = "That could have been done."
- "Die Rechnung hätte früher bezahlt werden können." = "The bill could have been paid earlier."
- "Das Problem hätte von einem Profi gelöst werden können." = "The problem could have been solved by a professional."

[Future / necessity in passive]
- "Die Maschine wird repariert werden müssen." = "The machine will have to be repaired."
- "Das kann bald gemacht werden." = "That can be done soon." (active possibility)
- "Das wird bald gemacht werden können." = "That will soon be able to be done." (future + passive + modal)

[Causative 'lassen' with modal]
- "Ich hätte mein Auto reparieren lassen können." = "I could have had my car repaired."
- "Sie hätte ihren Bruder kommen lassen können." = "She could have let her brother come."
- "Wir haben das reparieren lassen müssen." = "We have had to have that repaired."

[Auxiliary selection (movement verbs)]
- "Er ist nach Hause gegangen." = "He went home."
- "Er hat nach Hause gehen müssen." = "He had to go home." (note: "hat" with modal + movement verb)

[Questions / negatives — example rephrasings]
- "Hätte man das nicht verhindern können?" = "Couldn't one have prevented that?"
- "Warum konnte das nicht gemacht werden?" = "Why couldn't that be done?"

Style and alternatives: when to avoid a long cluster

Long verb clusters are grammatical but can be awkward. Rephrase when possible:
- Use an agent: "Man hätte das machen können." (One could have done that.)
- Use a different mood or periphrasis: "Es wäre möglich gewesen, das zu machen." (It would have been possible to do that.)
- Put the clause into a subordinate clause or split it with a pronoun: "Wir hätten das tun können, aber wir wussten es nicht." (We could have done it, but we didn't know.)

Quick summary / cheat sheet

- If a modal is used together with another verb in perfect-like contexts, expect a double infinitive: "hat + V-inf + modal-inf" ("Er hat das machen können").
- If you make the sentence passive and you also add a modal in a past hypothetical (Konj. II), expect: "hätte + Partizip II + werden + modal-inf" ("Das hätte gemacht werden können").
- If you have movement/change verbs with a modal, use "haben" + double infinitive in the perfect: "Er hat kommen müssen." not "Er ist kommen müssen."
- Avoid mixing "wäre + ... worden" and a modal: with a modal you normally form "werden + modal-inf" and use "hätte" in Konj. II perfect.

Glossary (short)

- infinitive: the base (unconjugated) form of a verb (machen, kommen, reparieren).
- Partizip II (past participle): the form used in perfect and passive (gemacht, gekommen, repariert).
- finite verb: the verb form that carries tense/mood/person (habe, hat, wäre, würde, hatte).
- auxiliary (Hilfsverb): verbs used to build tenses or voice (haben, sein, werden).
- modal verb: verbs that express ability/permission/necessity/etc. (können, müssen, dürfen, sollen, wollen).
- passive voice: expresses that the subject receives the action (werden + Partizip II in German: "Das wird gemacht").
- Konjunktiv II: the subjunctive used for counterfactuals/conditionals (hätte, wäre).

If you remember the order of parts (Partizip II → werden (for passive) → eventuell "lassen" → modal), and that modals often force "haben" + double infinitive in perfects, you'll be able to parse and build most multiple-infinitive structures correctly. When a cluster looks awkward, consider rephrasing — German speakers do this often.