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Hebrew Universal Dependencies Treebank
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Negative imperative #57

Open Hilla-Merhav opened 2 years ago

Hilla-Merhav commented 2 years ago

@amir-zeldes

I have a question about the morphological features we should assign to negative imperative VS positive imperative. We assign the value Mood=Imp to positive imperative since this mood is expressed morphologically only in positive environments. We don’t assign the Tense feature to these forms.

For example – לֵךְ Gender=Masc | Number=Sing | Person=2 | HebBinyan=PAAL | Voice=Act | Mood=Imp (no tense)

But when the environment is negative, the morphological form is a simple future tense, and the imperative mood is expressed through אל or biblical לא: אל תלך Morphological features of תלך are: Gender=Masc | Number=Sing | Person=2 | HebBinyan=PAAL | Voice=Act | Tense=Fut

Do we want to express the imperative mood via אל? If we do, should it be tagged AUX instead of ADV? I am not sure Mood=Imp is permitted with AUX, but the UD list of auxiliaries' functions includes: Periphrastic mood: imperative. I think it's not a bad way to describe the behavior of negative imperatives in Hebrew, but I am not sure whether it complicates our previous decisions, like אל לך ללכת in issue 36 - or biblical form like לא תלך. Another option is to tag אל ADV with Polarity=Neg, and decide that negative imperative constructions do not include any morphological information about Mood=Imp. What do you think?

amir-zeldes commented 2 years ago

Another option is to tag אל ADV with Polarity=Neg

I would do that in any case, it's the most intuitive part for me

Morphological features of תלך are: Gender=Masc | Number=Sing | Person=2 | HebBinyan=PAAL | Voice=Act | Tense=Fut

An alternative which may be simpler is to say that in this context, תלך is not Fut; it is actually still the imperative, which has a suppletive negative form. I actually think from a morphologist's stand point, that's what it is: an allomorph of לך in the environment following אל. After all, this form is 100% automatic and there is no alternative, so we could just say Mood=Imp.

IsraelLand commented 2 years ago

I expect this to get a lot trickier iff we start doing more colloquial material. I'm kind of collecting examples right now, which would probably boom in said colloquial stuff, but דיה לצרה בשעתה...