ZeroIntr: Avalent verbs, characterized by being able to form a nonelliptical, grammatical clause without a single argument, exist as a subclass of intransitive verbs.
’It is raining.’
’It is snowing.’
’Spring is getting closer.’
In Hungarian, some of the weather verbs have zero valency (Kenesei et al. 1998: 66, Salo 2011, Bartens 1995).