1. Haspelmath: 1990: 27: a construction is called passive if: (i) the active subject corresponds either to a non-obligatory oblique phrase or to nothing; and (ii) the active direct object (if any) corresponds to the subject of the passive; and (iii) the construction is somehow restricted vis-Ã -vis another unrestricted construction (the active), e.g. less frequent, functionally specialized, not fully productive. 2. Cf. #1563.
1. Haspelmath: 1990: 27: a construction is called passive if: (i) the active subject corresponds either to a non-obligatory oblique phrase or to nothing; and (ii) the active direct object (if any) corresponds to the subject of the passive; and (iii) the construction is somehow restricted vis-Ã -vis another unrestricted construction (the active), e.g. less frequent, functionally specialized, not fully productive. 2. Cf. #1563.