This paper is about the licensing conditions on empty categories in DP
, dealing in particular with the distribution of the null noun pro in
adjectival contexts. I will show that N-pro is submitted to requiremen
ts of formal licensing and identification, in which inflexional morpho
logy plays a crucial role. Under this scenario, the contrast between E
nglish and other languages with respect to N-pro can be attributed to
the absence versus presence of inflexional morphology within the nomin
al domain. It will be argued that the adjectival morphology we find in
languages other than English actually corresponds to three different
phenomena. Whereas certain morphemes are regular spell-outs of adjecti
val agreement, others must be regarded as special inflexional endings
surfacing for reasons of formal licensing and/or identification.