Drawing on recent scholarship integrating usage-based linguistics (UBL) and conversation analysis (CA) in the investigation of second language development, this paper reports on a microanalysis tracing one adult learner’s recurring, increasingly frequent, and diverse use of the multiword expression det er sant (it/that is true) (DES) in L2 Norwegian interactions over a time span of four months. While the use of DES did not undergo syntactic changes, the analysis revealed that the functions of the expression diversified as DES became more frequent in use. Initially functioning primarily as a means of expressing agreement, DES was increasingly used to preface disagreement and indicate the closing of self-initiated repair sequences. This functional diversification was accompanied by increasing morphophonological reduction indicating an ongoing process of routinization. We argue that these changes, also when non-linear and not complying with the target norm, allowed the learner to participate more actively in managing the flow of talk. The study provides insight into how interaction shapes L2 development and the role of education in providing access to situations that foster increased membership in the speech community.

中文翻译：

---

管理谈话流程：二语挪威语交互中多词表达的纵向案例研究

借鉴最近在第二语言发展研究中整合基于用法的语言学（UBL）和会话分析（CA）的学术成果，本文报告了一项微观分析，追踪了一名成年学习者反复、日益频繁和多样化地使用多词表达的情况在四个月的时间内，挪威语二语交互中的 sant（it/that is true）（DES）。虽然 DES 的使用没有发生语法变化，但分析表明，随着 DES 的使用变得更加频繁，该表达的功能也变得多样化。 DES 最初主要作为表达协议的一种方式，越来越多地用于为分歧做序言并指示自启动修复序列的结束。这种功能多样化伴随着形态语音的减少，表明日常化过程正在进行。我们认为，这些变化，即使在非线性且不符合目标规范的情况下，也可以让学习者更积极地参与管理谈话流程。该研究深入探讨了互动如何影响第二语言的发展，以及教育在提供机会以促进言语社区成员数量增加方面的作用。