Grammatisation¶
Past-participle for the passive construction¶
Past participles inherently denote a completed state
The use of the past participle to form periphrastic passives evolved in Proto-Germanic and early Old English through a three-stage historical process
1. Origin as Stative Verbal Adjectives¶
In PIE, the ancestors of the past participle suffixes (-tó-, the modern English -ed, and -nó- -en) were not tense markers. They created verbal adjectives denoting a completed state or result resulting from an action.
2. Patient Orientation (Aspect to Voice shift)¶
Because these verbal adjectives denoted a completed state, their orientation depended on verb transitivity:
The completed state attaches to the underlying object/patient affected by the action:
a broken vase >> passive/stative (transitive verb)
Because the state of a completed transitive action inherently resides in the target of the action, the participle naturally took on a passive alignment.
With transitive verbs the state resides in the Target, so attaching the participle to a noun automatically forces that noun into the Patient role.
Attaching “painted” to “wall” >> “painted wall” (a wall that underwent painting).
a fallen leaf >> active/perfective (intransitive verb, the completed state attaches to the subject)
For intransitive verbs (specifically unaccusative/mutative verbs denoting motion or a change of state), the exact same logic applies, but with an active/perfective alignment instead.
Because there is no external Agent to cause a change on a separate target, the resulting state exists entirely within the Subject that performed or underwent the movement:T
The guest arrived (the guest is now present, arrived).
The leaf fell (the leaf is now down, fallen).
The contract expired (the contract is now invalid, expired).
The Subject is both the participant involved in the event and the sole container of the resulting state.
3. Grammaticalization via Copular Linkage¶
In Old English, these patient-oriented verbal adjectives were paired with copular verbs:
Wesan / Beon (“be”) expressed a resulting state
the door is closed
Weorþan (“become”) expressed a transition into a state.
Over time, this combination (be + past participle) shifted from a simple copula-plus-adjective structure (stative passive) into a fully grammaticalized verbal construction capable of expressing dynamic action and taking agentive by-phrases (actional passive).
Summary¶
Because they denote a completed state, the past-participles automatically target the participant that receives or registers that state.
Since passive voice is defined structurally as making the Patient/Target the focal argument (Subject or Head noun) rather than the Agent, the past participle’s inherent duty—describing a state residing in the target—made it naturally aligned with the passive.
Note
Transitive and intransitive verbs
Intransitive:
Intransitive verbs (specifically unaccusative verbs like fall, arrive, vanish, expire) have only one argument: the Subject.
The leaf fell. (base event)
Subject (Theme/Undergoer): leaf (the sole argument)
Agent (External Doer): None
State Target: The process originates with and affects the leaf, so the resulting state (being on the ground) resides entirely in the leaf (the Subject).
Resulting Orientation: Active / Perfective
a fallen leaf >> “a leaf that fell (or “a leaf that has fallen”)
Transitive:
The child broke the vase. (base event)
Agent (doer): child
Patient (undergoer): vase
State Target: The child caused the action, but the resulting state (brokenness) resides entirely in the vase.
Resulting Orientation: Passive/stative,
a broken vase >> a vase that was broken
Feature |
a broken vase (Transitive) |
a fallen leaf (Intransitive) |
|---|---|---|
Origin Slot |
Attaches to underlying Object |
Attaches to underlying Subject |
Paraphrase |
a vase that was broken |
a leaf that has fallen |
Voice / Aspect |
Passive / Stative |
Active / Perfective |