Roman Numerals in Major Analysis: O Canada Theory ThingsWilliam Wieland
Major:IIVV(primary chords)
 diminished:viio(just one)
minor:iiiiivi(the rest)
  C: I ii iii IV V vi viio I
Roman Numeral Basics Roman Numeral Drill 1 Roman Numeral Drill 2

Roman numerals in minorClick Here for More
minor:iivv(primary chords)
 diminished:iio(just one)
Major:IIIVIVII(the rest)
UNLESS accidentals appear
 e.g. leading tone: Vviio(like major)
  a: i iio III iv v VI VII i
 
 
  a: V viio

What if I find only two notes? Click Here for Seventh Chords