The set of prepositions in Dutch can be divided in two classes, for wh
ich the terms ''type A'' and ''type B'' are used The complement of a t
ype A preposition can be stranded when its complement takes a special
form (e.g. er achter 'there behind', waar in 'where in'), but this is
not possible with type B prepositions (e.g er namens 'there in name o
f', waar gedurende 'where during'). The two classes show a wide range
of additional differences with respect to frequency, register, morpho
logy, interpretation, transitivity. It is argued that only type A prep
ositions are real prepositions, that is, members of category P. Type B
prepositions are syntactically complex, consisting of two heads. a pr
eposition and a member of another category, a noun (e.g middels 'by me
ans of' or benoorden 'north of'), a verb ( e.g. betreffende 'concernin
g' or behoudens 'barring'), an adjective (e.g inclusief 'including'),
or even a preposition (e.g. beneden 'beneath'). The prepositional head
is often realized as a prefix (be-) or affix (-s). The impossibility
of stranding type B prepositions can be made to follow from locality c
onstraints on movement.