We examined comprehension and production of perfective and imperfective verb aspect. We explored the cognitive capacities in segmenting event boundedness in Chinese IWA. We found greater impairment at perfective than imperfective aspect in the production. The IWA rated sentences with perfective/imperfective markers lower than controls. The IWA showed no impairment at marking event boundaries.
Wang et al. (Sun,) studied this question.
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