Aphabetic letter pairs in words

FO: folio

FP = friendship

FQ = Farouq

FR - forever

FS: Festivus (or fallacious)

FT = flatulent

FU = flu

FV - “fav”
Debatable legitimacy, but both “fav” and “fave” are widely used as slang terms, short for “favorite”

FW - feverfew

FX: flummox

FY = fifty

FZ = fez

GA - gorilla

GB = grab

GC = galactic

GD - graduated

GE = governance

GF: goniff

GG = gravitating

GH: goulash