This paper discusses how German parasitic gap data from various earlier publications illustrate two patterns of systematic grammatical variation in the language, which have not been previously identified as such in the literature. I show how Heck and Himmelreich’s (Heck, Fabian & Anke Himmelreich. 2017. Opaque intervention. Linguistic Inquiry 48. 47–97) analysis for one pattern, although not able to currently capture both patterns, can be extended by allowing for variation in the positions targeted by scrambling along with the phrase markers that constitute domains for linearization. The resulting unifying analysis highlights how different grammatical mechanisms can in various ways (both local and global) have the effect of preserving the hierarchical relations involved in multiple movement dependencies.

中文翻译：

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德语中的寄生间隙模式和等级保护

本文讨论了来自各种早期出版物的德语寄生间隙数据如何说明该语言中系统语法变异的两种模式，而这些模式之前在文献中尚未被识别。我展示了 Heck 和 Himmelreich (Heck, Fabian & Anke Himmelreich. 2017. 不透明干预。语言探究48. 47–97) 对一种模式的分析虽然目前无法捕获两种模式，但可以通过允许加扰所针对的位置的变化以及构成线性化域的短语标记来扩展。由此产生的统一分析强调了不同的语法机制如何以各种方式（局部和全局）具有保留多个运动依赖性所涉及的层次关系的效果。