Current phasal models of words differ from one another in two main ways: which heads are phasal and whether a phase head allows higher heads to access its complement. Through an investigation of verbs in Muskogee, this paper argues that in some languages, words have functional phase heads that divide them into two domains and that block all higher heads from access to morphemes. Specifically, Muskogee verbs contain aspectual phase heads (Asp0), which separate the verb into a sub-aspectual, VP-level domain—Phase One (Φ1)—and a superaspectual, InflP-level domain—Phase Two (Φ2). As previous work on Muskogee has shown, Φ1 (the ‘Stem’ in previous literature) and Φ2 form separate domains both in phonology, affecting stress and tone patterns, and in temporal semantics. This paper makes the novel observation that morphemes in Φ1 and Φ2 do not interact with each other in rules of allomorphy or allosemy, despite widespread interaction within each domain. An Asp0 phase head that follows the strong PIC1 accounts for the lack of interaction between Φ1 and Φ2. Categorizers, which are typically taken to be phase heads, behave differently from Asp0 in Muskogee, though their phasal status is unclear.

中文翻译：

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马斯科吉动词中的相位相位头

当前单词的相位模型在两个主要方面彼此不同：哪些中心是相位的，以及相位中心是否允许更高的中心访问其补语。通过对马斯科吉动词的调查，本文认为在某些语言中，单词具有功能性相位头，将它们分为两个域，并阻止所有高级头访问语素。具体来说，Muskogee 动词包含方面的阶段头 (Asp0)，它将动词分为子方面的 VP 级别域 - 第一阶段 (Φ1) - 和超方面的 InflP 级别域 - 阶段二 (Φ2)。正如之前在 Muskogee 上的工作所表明的那样，Φ1（之前文献中的“词干”）和 Φ2 在音系学、影响重音和音调模式以及时间语义方面形成了不同的域。本文进行了新的观察，即 Φ1 和 Φ2 中的语素在异形或异形规则中不相互作用，尽管每个域内都有广泛的相互作用。跟随强 PIC1 的 Asp0 相头解释了 Φ1 和 Φ2 之间缺乏相互作用。分类器通常被视为阶段负责人，其行为与 Muskogee 中的 Asp0 不同，尽管它们的阶段状态尚不清楚。