AdvCop: Use of the copula with adverbial predicates is always required.
(1) én a tanszék-en vagy-ok.
I the department-sup cop-prs.1sg
‘I’m at the department..’
(2) laura a tanszék-en van.
Laura the department-sup cop.prs.3sg
‘Laura is at the department..’
(3) laura a tanszék-en vol-t.
Laura the department-sup cop-pst.3sg
‘Laura was at the department.’
In Hungarian, adverbial predicates are used with copulas in every tense, number and person (cf. Kenesei et al. 1998: 58‒64, Lengyel 2000b).