make the question auxiliary finite and agree with the subject.

-   We ensure that the object is kept immediately after the verb.

-   For passive cases, *subj-verb-obj* is changed to *obj-verb-by-subj*.

Handling Factualness via Implicature
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Previous rule-based approaches  [@mazidi2016infusing; @flor2018semantic] have used the NEG dependency label to identify polarity. But such an approach would suffer whenever polarities would be hierarchically entailed from their parent clauses in cases like “Picard did not fail to X” where the entailed polarity of “X” is, in fact, positive. Moreover, in one-way implications like “Bojack hesitated to X”, it would be best not to generate a question for unsure cases since it is open-ended if Bojack did or did not X. A similar example is displayed in Figure \[fig:PB3\]. For each verb representing a subordinate clause, we compute its entailed truth or falsity from its parent clause using the set of one-way and two-way implicative verbs, and verb-noun collocations provided by @karttunen2012simple. For example, the two-way implicative construction “forget to X” entails that “X” did not happen, so it would be wrong to ask questions about “X”. @karttunen2012simple provides simple implications in the form of 92 verbs and phrasal implications in the form of 