Definition
A presupposition trigger is a construction or item that signals the existence of a presupposition in an utterance.
Examples
(English)
Both positive and negative forms are presented, showing that the presuppositions are constant under negation:
- Definite descriptions
- In John saw/didn't see the man with two heads, the definite description the man with two heads triggers the presupposition "There exists a man with two heads." (The unbelievability of the presupposition is what makes the positive utterance unbelievable and the negative one odd.)
- Factive verbs
- In John realized/didn't realize that he was in debt, both realize and didn't realize that trigger the presupposition "John was in debt."
- Other factives are:
- (it) be odd that
- be sorry/proud/indifferent/glad/sad that
- know that, and
- regret that.
- Implicative verbs
- In John managed/didn't manage to open the door, both managed/didn't manage to trigger the presupposition "tried to," as in "John tried to open the door."
- Other implicative verbs are
- avoided (X-ing), which presupposes "was expected to"
- forgot to, which presupposes "ought to have"
- happened to, which presupposes "didn’t plan/intend to," and
- intended to.
- Change of state verbs
- In Kissinger continued/didn’t continue to rule the world, both continued/didn’t continue to trigger the presupposition "had been," as in "Kissinger had been ruling the world."
- Other change of state verbs are
- arrive
- begin
- come
- enter
- go
- leave
- stop, and
- take (X from Y), which presupposes "X was at/in/with Y."
- Expressions of repetition
- In Carter returned/didn’t return to power, both returned/didn’t return trigger the presupposition "Carter held power before."
- Other such expressions are
- again
- another time
- anymore
- come back
- repeat, and
- restore.
- Expressions of temporal relations
- In while Chomsky was revolutionizing linguistics, the rest of social science was/wasn’t asleep, the clause introduced by while triggers the presupposition "Chomsky was revolutionizing linguistics."
- Other such conjunctions triggering presuppositions are
- after
- as
- before
- during
- since, and
- whenever.
- Cleft sentences
- In it was/wasn’t Henry that kissed Rosie, the cleft structure triggers the presupposition "someone kissed Rosie."
- The pseudocleft structure in what John lost was his wallet triggers the presupposition "John lost something."
- Stressed constituents
- In John did/didn’t compete in the OLYMPICS, the stressed constituent triggers the presupposition "John did compete somewhere."
- Returned actions
- In Adolph called Marianne a Valkyrie, and she complimented him back/in return, too, both back/in return, too trigger the presupposition "to call Marianne a Valkyrie is to compliment her."
- Comparisons
- In Carol is/isn’t a better linguist than Barbara, the comparison triggers the presupposition "Barbara is a linguist."
- Counterfactual conditions
- In if the notice had only said ‘mine-field’ in English as well as Welsh, we would/would never have lost poor Llewellyn, the form of the condition triggers the presupposition "The notice didn’t say mine-field in English."
- Questions
- Questions presenting alternatives tend to trigger a presupposition of the truth of one of the alternatives. The utterance is Newcastle in England or in Australia? triggers the presupposition "Newcastle is either in England or in Australia."
- Questions containing interrogative pro-forms tend to trigger a corresponding presupposition containing an indefinite pro-form. The utterance who is the professor of linguistics at MIT? triggers the presupposition "someone is the professor of linguistics at MIT."
Sources 2
- Karttunen No date
- Levinson 1983, 181–184