Template:el-nF-η-ες-1
The inflection-table template for Greek nouns declining like γραμμή (grammí). Other examples may be found in the Category:Greek nouns declining like 'γραμμή'.
The syntax {{el-nF-η-ες-1|γραμμ}}
produces the table:
Declension of el-nF-η-ες-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.