This study explored the use of phraseological frames (p-frames), a type of lexical bundle, by simultaneous interpreters as a strategy for managing cognitive loads. Specifically, using a comparable corpus of United Nations Security Council conferences, the study employed kfNgram to automatically identify the p-frames, and investigated their variations, regarding frequency, fixedness, structures, and functions among L1, L1–L2, and L2–L1 texts, which differ in cognitive loads due to task complexity and directionality of interpreting. The findings indicated that interpreters used more p-frames as cognitive loads increased; No significant difference was identified in fixedness as all texts tended to employ heavily formulaic and relatively fixed p-frames. Directionality correlated with grammatical preferences, with retour interpreting relying more on content-word-based p-frames. Additionally, task complexity correlated with functional preferences, with self-expression characterized by more stance expressions in the simple task. This study innovatively addressed the interaction of two factors that generate cognitive loads in interpreting and filled a research gap by providing empirical evidence on how directionality affects the use of formulaic language.

Proverbs are usually regarded as structurally fixed expressions. However, in daily communication, language users often change them to suit their communicative purposes in many ways, resulting in proverb variations. Using the data from the Corpus of Contemporary American English (COCA corpus), this study attempts to present varieties of the English proverb “There are two sides to every coin” and explain the variations from the perspective of linguistic creativity. This study also explores the variations of this proverb in EFL learners' use via the data from Chinese EFL learners' corpus TECCL. The study shows that, first proverb use can roughly be divided into two types: canonical and non-canonical uses, each having three ways of alteration, i.e., addition of modifiers, substitution of content words, and reduction. Second, Chinese EFL learners tend to use the proverb in a mechanical way with little variation, which shows their inflexible use of proverbs. Finally, proverb variation by nature is the creative manipulation of language use to fit the context, which is a form of linguistic creativity that reflects the cognitive creativity of human beings.