wagon, when, within
an on in are all 2 letter words ending in N.
Some seven letter words ending in N are:BritainbullioncautioncurtaindrunkendungeonemotionenvironerosionfashionfissiongelatinLincolnkitchenmansionmentionmillionmissionovationpassionpelicanportionpuritanvenisonversion
German
conflagration
Surgeon
intoxication
patron
Question.
spleen
damn
The base word for running is run. the ending for running is ing. you double the consonant when you have it before the ending that has a vowel
Nesbia