These are supposed to be elements, or aspects of linguistic devices which indicate either (dependent on which conceptions of "illocutionary force" and "illocutionary act" are adopted) that the utterance is made with a certain illocutionary force, or else that it constitutes the performance of a certain illocutionary act. In English, for example, the interrogative is supposed to indicate that the utterance is (intended as) a question; the directive indicates that the utterance is (intended as) a directive illocutionary act (an order, a request, etc.); the words "I promise" are supposed to indicate that the utterance is (intended as) a promise. Possible IFIDs in English include: word order, stress, intonation contour, punctuation, the mood of the verb, and performative verbs.