5.2.3 Ergative verbs
We have just seen that a verb like break can appear in a VP with a single theme argument which in the absence of a light verb will be the subject of the clause. This looks exactly like an unaccusative verb, yet there are differences between this class of verb and the unaccusatives. For one thing, these verbs are not movement or locative verbs, but typically involve a change of state:
(34) | a | the window broke |
b | the door closed | |
c | the glass shattered | |
d | the ship sank | |
e | the bomb exploded | |
f | the tree grew |
Furthermore, these verbs do not appear in there sentences or locative inversion structures:
(35) | a | *there broke a window |
b | *there sank a ship | |
(36) | a | *in the house opened a door |
b | *in the cupboard shattered a glass |
Apparent exceptions to these observations may again be accounted for by assuming an ambiguous status of the verb involved. For example, the verb grow can apparently behave like an unaccusative:
(37) | a | there grew a tree in the garden |
b | in the garden grew a tree |
In these examples, however, it might be that the verb has a locative interpretation rather than a change of state interpretation. If we force the change of state interpretation, the verb ceases to behave like an unaccusative:
(38) | a | the tree grew bigger |
b | *there grew a tree bigger | |
c | *in the garden grew a tree bigger |
Another major difference between this group of verbs and unaccusatives is that this group can apparently appear in a transitive context:
(39) | a | I broke the window |
b | she closed the door | |
c | he shattered the glass | |
d | they sank the ship | |
e | the police exploded the bomb | |
f | the gardener grew the tree |
Most unaccusatives cannot appear transitively:
(40) | a | *he arrived the letter |
b | *they departed the train | |
c | *the magician appeared a rabbit | |
d | *the Romans lived the Picts in Scotland |
(41) | a | we sat the guests at the table |
b | he stood the ladder against the wall | |
c | the rats spread the disease | |
d | they ran a pipeline under the sea |
In these cases, these verbs are unable to appear in there or locative inversion structures and so again this may be another case of ambiguity:
(42) | a | *there sat the host some guests at the table |
b | *there spread the rats a disease | |
(43) | a | *against the wall stood the builder a ladder |
b | *under the sea ran the engineers a pipeline |
These verbs that have a transitive and an unaccusative use are sometimes called ergative verbs as the subject of the unaccusative version is interpreted the same as the object of the transitive version:
(44) |
Languages which relate the subject of the intransitive verb with the object of a transitive verb in terms of a shared case form, for example, are called Ergative languages and while it is doubtful whether the phenomenon demonstrated in (44) has anything to do with the ergativity we find in languages like Basque or Eskimo languages such as Yupik, the term is a convenient one.
The transitive version of ergative verbs all have agentive subjects and theme objects. A first attempt at representing the structure of a VP headed by an ergative might be:
(45) |
Unfortunately this is an entirely different set of Θ-role assignments to what we have previously found. We concluded above that the theme Θ-role is assigned to the specifier of a thematic verb, not its complement position. The agent, on the other hand, was assigned to the specifier of a light verb taking a VP complement. If we are to maintain the UTAH, either the structure in (45) is inaccurate, or our analyses of unaccusative and light verbs is.
Moreover, the structure of the VP in (45) is simple, in comparison to that of verbal complexes involving light verbs, as in (32), for example. Yet the event structure expressed here is not simple. In the butler opened the door, there is an event involving the butler doing something and an event involving the door being open and clearly the first event causes the second. Hence the event structure is:
(46) | e = e1 → e2 | : e1 = ‘the butler did something’ | |
e2 = ‘the door opened’ |
If (45) is the correct analysis, then there is a mismatch here between event structure and syntactic structure whereas in other cases we have seen there has been an isomorphism between the two.
5.2.3.1 Potential problems
5.2.3.2 Light verbs and ergatives
5.2.3.3 Unaccusatives and ergatives