英語の月名を返す

{{月名en| 1 }} → {{subst:#switch: 1 

| 1 = January | 2 = February | 3 = March | 4 = April | 5 = May | 6 = June | 7 = July | 8 = August | 9 = September | 10 = October | 11 = November | December }}


{{subst:#switch:{{{1}}} | 1 = January | 2 = February | 3 = March | 4 = April | 5 = May | 6 = June | 7 = July | 8 = August | 9 = September | 10 = October | 11 = November | December }}