Category:Simple Clauses
Feature:Antipassive Constructions WALS
Name:Implicit patient
Languages (61):
Conlangs (51):
Kelanian
Ghaf
SIAL
Dacayan
Waku Antipassive forms are formed with the prefix kei-.
Kangir
Proto-Kunnu-lujungo
TIAL
Ngovasi
Ampizd
Kiassan Turasta
South Eresian
Sakawi 
Active transitive verbs in Namaxba are obligatorily marked for objects. When a transitive verb is in the antipassive voice, the object marker is deleted from the verb and the agent assumes the absolutive case.
Mithara
Kaynuryos
Redspeech
Applelang
Kamëzet
Meino
Tumbian
Hy'Bae
Siaswo
Lwaitel
Haotyetpi
Naharqan
Kirronga
Numi
Jywe
Kolyma Ainu
Dhrahhynian
Ancient Draconian
Shurs
Least Average
PURK
HIH
Emihtazuu
Tínaaqhe
Aats'ax
Qaelian
Ithkuil III
the I-Picked-Some-Random-Features-With-a-Die Language)
Toaq
Soc'ul'
Waa
Ntali
Standard Knrawi
New Ithkuil
Frangian Sign
Kalavi
Asso-Thrystian

Natlangs (10):
Acoma
Hunzib
Jakaltek
Kiowa
Krongo
Lango
Lavukaleve
Mangarrayi
Cree (Plains)
Koyraboro Senni