Infinitival clauses can be subjects of predication if they are linked to the anticipatory pronoun itit. In such cases, the adjective is often evaluative. The infinitival clause may either contain a clause-initial bare infinitive (an Imperativus-pro-Infinitivo), or a clause-final infinitive bearing the infinitival marker -(e)n. The Adjective Phrase (AP) may be accompanied by an Adposition Phrase (PP) argument built on the preposition fanof, as in (1) examples below. The PP argument fan Janof Jan must be interpreted as coreferential with the subject of the infinitival clause. This PP argument bears the thematic role of theme, and it must be human:

The AP may also be accompanied by a PP argument built on the preposition foarfor, as in (2) below. The argument in the foarfor PP bears the semantic role of experiencer, and experiencers are always human (or animate). The PP argument foar Janof Jan must be interpreted as coreferential with the subject of the infinitival clause:

The embedded clause is factive when it is selected by the predicate flauweak and non-factive when it is selected by the adjective nedichnecessary.