Metasequential

Moreover, this supporting account contains the metalinguistic, or more properly metasequential, term reason, which encodes the speaker’s awareness of the conversational method that he is employing (i.e. reasons are realized in the form of accounts).

Her turn ends with an invitation to the Doctor to formulate, ‘so’, which he appears to anticipate. Being unwilling to formulate, in his next turn he confirms that he understood (metasequential right), adding a supplementary inquiry, ‘the whole lot’, which Nicole confirms with a minimal ‘yeah’.

Higher-order-iterations of conditionals require higher-order metasequential constructions.