Template:el-nN-ον-οντα-1
The inflection-table template for Greek nouns declining like παρόν (parón). Other examples may be found in the Category:Greek nouns declining like 'παρόν'.
The syntax {{el-nN-ον-οντα-1|παρ}}
produces the table:
declension of el-nN-ον-οντα-1
A full list of other declension-table templates with a brief indication of use can be found at Wiktionary:Greek noun inflection-table templates.