Verbs
From UNL Wiki
A verb is a word that in syntax conveys an action (bring, read, walk, run, learn), an occurrence (happen, become), or a state of being (be, exist, stand).
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Natural language
Verbs are normally classified in four different categories?
- Auxiliary verbs
- Modal verbs
- Copula or linking verb
- Verbs
Attributes for Verbs
In many languages, verbs are inflected (modified in form) to encode person, tense, aspect, mood and voice.
Lists of verbs
UNL
Verbs are represented in UNL:
- by attributes, in case of auxiliary, quasi-auxiliary and semi-auxiliary verbs;
- by relations, in case of linking verbs (copula);
- by UWs, otherwise.
Verbs as attributes
- Modal verbs are represented by attributes of modality, such as @ability (can), @desire (wish), @necessity (need), @obligation (must, have to), @permission (may), etc.
- Auxiliary verbs are represented by attributes of tense or aspect, such as @future (will), @present.@progressive (is + gerund), @past.@perfect (had + participle), etc.
Verbs as relations
- Copula verbs are represented as the relation "aoj"
- Peter is beautiful = aoj(beautiful, Peter)
