Dual is a grammatical number category that refers to two entities. This question asks whether there is agreement, i.e., that in addition to being märked on the subject, dual is also marked on the verb, as in the South Saami example (1).

(1) South Saami

Månnoeh luhkien
we.1DU read.1DU
‘We two read'

Agreement may be consistent for various kinds of nouns (e.g., animate and inanimate nouns) and pronouns. In South Saami, there is dual agreement only for pronouns. In other instances, the plural form is used (cf. examples 2-3).

(2) South Saami

Maanah låhkijägan
child.PL read.3DU
‘Children (= two) read'

(3) South Saami

Göökte gaahtoeh byöpmedieh
two cat.PL eat.3PL
‘Two cats eat'

Coding

The value is ‘1’ if there is verbal agreement with a dual subject in at least one of the possibilities mentioned above. The answer is ‘0’ if dual is marked only on the verb or only on the noun.